Lifestyle Style Last Night's Look: Love It or Leave It? We can't stop talking about Rihanna's champagne couture gown, Kylie Jenner's super-long train and more star looks By Colleen Kratofil Published on December 15, 2015 04:10 PM Share Tweet Pin Email Trending Videos 01 of 64 DEMI LOVATO Kevin Mazur/Getty wears a bronze glow under a black tux and adds silver jewels (including a Jennifer Fisher choker) at the Billboard Women in Music 2015 event in N.Y.C. 02 of 64 RIHANNA Paul Archuleta/Getty in a champagne Dior Haute Couture gown and stole, plus tons of Cartier jewels, for her annual Diamond Ball honoring the Clara Lionel Foundation in L.A. 03 of 64 KYLIE JENNER FameFlynet in a beige August Getty Atelier belted gown with Harry Kotlar jewels at Rihanna's Diamond Ball honoring the Clara Lionel Foundation in L.A. 04 of 64 JULIANNE MOORE Donna Ward/Getty in a flared-sleeve black Simone Rocha midi and cutout Aquazzura heels at the ACRIA's 20th Anniversary Holiday Dinner in N.Y.C. 05 of 64 LUPITA NYONG'O Gustavo Caballero/Getty in a striped strapless Christian Siriano dress on the set of Univision's Despierta America in Miami. 06 of 64 JENNIFER HUDSON Bruce Glikas/FilmMagic in a violet gown at the opening night party for The Color Purple in N.Y.C. 07 of 64 DREW BARRYMORE Gregory Pace in a beaded navy dress and peep toe heels at the ACRIA's 20th Anniversary Holiday Dinner in N.Y.C. 08 of 64 JADA PINKETT SMITH Paul Archuleta/Getty in a one-shoulder Zuhair Murad gown and silver sandals at Rihanna's Diamond Ball in L.A. 09 of 64 UZO ADUBA MediaPunch/Rex/Shutterstock in a candy pink Zac Posen mini, Gianvanito Rossi pumps, Edie Parker clutch and Lorraine Schwartz jewels at the opening night party for The Color Purple in N.Y.C. 10 of 64 AMBER HEARD Charley Gallay/Getty in a black-and-white fringe dress and leather jacket at the Timberland Celebrates Winter on the Modern Trail event in L.A. 11 of 64 DANIELLE BROOKS Bruce Glikas/FilmMagic in an abstract floral gown at the opening night party for The Color Purple in N.Y.C. 12 of 64 DEMI LOVATO Jamie McCarthy/Getty in a a fishnets-and-hotpants ensemble and a bomber jacket at KISS 108's Jingle Ball in Boston. 13 of 64 MIRANDA KERR Han Myung-Gu/WireImage) in a white lace Monique Lhuillier dress with blue and green floral appliqués at a photo call for accessory line Samantha Thavasa in Seoul, South Korea. 14 of 64 HAILEE STEINFELD Natasha Moustache/WireImage in a black crop top suit and red Kurt Geiger London pumps at KISS 108's Jingle Ball in Boston. 15 of 64 LUPITA NYONG'O Carlos Tischler/Rex/Shutterstock in a bright blue Roland Mouret midi dress with white cap-toe pumps and Pamela Love jewels at the Star Wars: The Force Awakens Mexico City photo call in Mexico City, Mexico. 16 of 64 PRINCESS KATE Eddie Mulholland/AP wears a houndstooth funnel-neck coat with black pumps and matching clutch for a visit at the Action for Addiction Centre in Warminster, England. 17 of 64 SELENA GOMEZ Jamie McCarthy/Getty in a David Koma dress, featuring a crystal-embroidered top with pointy-toe NIcholas Kirkwood pumps at the Q102 Jingle Ball in Philadelphia, Pennsylvania. 18 of 64 FREIDA PINTO Araya Diaz/WireImage in a black halter top and voluminous Cushnie et Ochs skirt paired with ankle strap sandals at Audemars Piguet's Rodeo Drive boutique opening in Beverly Hills. 19 of 64 OLIVIA PALERMO Jason LaVeris/FilmMagic in a blush-tone button-down blouse and matching skirt, featuring two thigh-high slits, at Audemars Piguet's Rodeo Drive boutique opening in Beverly Hills. 20 of 64 LENA DUNHAM Steve Granitz/WireImage in a colorful paisley print top and finge-adorned mini skirt at the The Hollywood Reporter's Women in Entertainment breakfast in L.A. 21 of 64 ALESSANDRA AMBROSIO Jason LaVeris/FilmMagic in a winter white Alexandre Vauthier suit paired with shimmery silver accessories (including an Edie Parker clutch and Nigaam earrings) and gray pumps at Audemars Piguet's Rodeo Drive boutique opening in Beverly Hills. 22 of 64 LEA MICHELE Steve Granitz/WireImage wears a hot pink midi dress with nude sandals at The Hollywood Reporter's Women in Entertainment breakfast in L.A. 23 of 64 OLIVIA WILDE Jon Kopaloff/FilmMagic in a scarlet blouse and high-waisted black trouser (both Marc Jacobs) at The Hollywood Reporter's Women in Entertainment breakfast in L.A. 24 of 64 SERENA WILLIAMS Jason LaVeris/FilmMagic in a cap-sleeve, skin-tight LBD at Audemars Piguet's Rodeo Drive boutique opening in Beverly Hills. 25 of 64 KRIS JENNER Jon Kopaloff/FilmMagic in a not-so-basic bauble-adorned LBD paired with black tights and T-strap pumps at The Hollywood Reporter's Women in Entertainment breakfast in L.A. 26 of 64 SELMA BLAIR Sara De Boer/Startraks in a long-sleeve white sheath dress with black sandals at The Hollywood Reporter's Women in Entertainment breakfast in L.A. 27 of 64 TYRA BANKS Jon Kopaloff/FilmMagic in a body-hugging dark blue dress at The Hollywood Reporter's Women in Entertainment breakfast in L.A. 28 of 64 JULIANNE MOORE Gary Gershoff/WireImage in a deep V-neck dress with fur detailing and ankle-tie, open-toe pumps at the Ferragamo Presents: Ganico Studios, Celebrating 100 Years in Hollywood fête in N.Y.C. 29 of 64 GWYNETH PALTROW LuMarPHOTO/AFF-USA in a pale pink David Koma mini dress with flared sleeves and bow-embellished Alexandre Birman sandals (which we hope she saves for daughter Apple!) at a ceremony honoring Rob Lowe with a star on the Hollywood Walk of Fame in Hollywood. 30 of 64 DAISY RIDLEY Chung Sung-Jun/Getty in a sculptural black and red check suit jacket and pants (both Dior) plus coordinating burgundy Jimmy Choo shoes the Star Wars: The Force Awakens actress shines at a press conference for the movie in Seoul, South Korea. 31 of 64 TINA FEY Gilbert Carrasquillo/FilmMagic in a sexy black Oscar de la Renta bustier dress with sheer stomach panels and pointy patent leather pumps, the Sisters star provides the mic drop moment of the night during her movie's premiere in N.Y.C. 32 of 64 GWEN STEFANI Trae Patton/NBC in a coin-adorned turtleneck dress (and rocking another bold beauty look), The Voice star’s makeup artist Gregory Arlt said her outfit ”makes a lot of cents!” for the show in L.A. 33 of 64 AMY POEHLER Gilbert Carrasquillo/FilmMagic in a bodice-embellished neoprene Tadashi Shoji number with a sheer silk chiffon overlay and an Aurélie Bidermann cuff at a premiere for her new movie Sisters in N.Y.C. 34 of 64 CATE BLANCHETT Mark Metcalfe/Getty in an elegant floor-grazing Giorgio Armani gown featuring a high, asymmetrical neck and statement earrings at the 5th AACTA Awards in Sydney, Australia. 35 of 64 ZOSIA MAMET Gilbert Carrasquillo/FilmMagic in a starry Reformation mini at a premiere for Sisters in N.Y.C. 36 of 64 AMANDA SEYFRIED Tiffany Rose/Getty in a floral print dress with slits at the sleeves (and flats!) for the Dylan’s Candy BarN launch event in L.A. 37 of 64 OLIVIA CULPO Stefanie Keenan/Getty in a fitted black top and “flirty” leather skirt while hosting the #GivingTuesdayShoeDazzle event benefitting Project Sunshine in Hollywood. 38 of 64 CHLOE GRACE MORETZ Vivien Killilea/Getty in a button down lace shirt and leather skirt at a Nylon magazine event celebrating her December/January cover in L.A. 39 of 64 BINDI IRWIN Don Arnold/WireImage in a pleated lace dress and matching heels, the Dancing with the Stars winner attends the 5th AACTA Awards in Sydney, Australia. 40 of 64 DIANE KRUGER wears a dramatic deep green Valentino couture gown to “An Evening Honoring Valentino” at Lincoln Center in N.Y.C. 41 of 64 JENNA DEWAN-TATUM Sara De Boer/Startraks wears a sexy sheer lace Marchesa dress with Lorraine Schwartz jewels to the L.A. premiere of The Hateful Eight. 42 of 64 ZENDAYA Sara De Boer/Startraks wears a blue lace dress, Nicholas Kirkwood pumps and a John Hardy ring at the L.A. premiere of The Hateful Eight. 43 of 64 OLIVIA PALERMO Evan Agostini/Invision/AP in a black-and-gold patterned long-sleeve Valentino dress with jewels from her BaubleBar collection at “An Evening Honoring Valentino” in N.Y.C 44 of 64 KEIRA KNIGHTLEY Gregory Pace wears a black Valentino dress topped with a coat to “An Evening Honoring Valentino” in N.Y.C. 45 of 64 CHANEL IMAN Angela Pham/BFA in a strapless lace peplum Marchesa jumpsuit and sandals from the brand's new footwear line at the launch of Marchesa footwear in N.Y.C. 46 of 64 LAVERNE COX Marcus Owen/Startraks in a long-sleeve red midi dress by Giulietta, a fur stole (her new favorite accessory!) and studded pumps for the Cosmo 100 lunch in N.Y.C. 47 of 64 MIRANDA KERR ChinaFotoPress/Getty wears a red flutter-sleeve Tadashi Shoji mini dress, Swarovski jewels and thigh-high black boots at the Swarovski Christmas Tree Lighting in Shanghai, China. 48 of 64 EMILY RATAJKOWSKI Mike Windle/Getty wears a little black dress – of her design! – at the Christy Dawn x Emily Ratajkowski dress launch party in Venice, California. 49 of 64 ELSA PATAKY Jim Spellman/WireImage in a flapper-esque sequined, fringed Naeem Khan dress and black pumps at the premiere of In the Heart of the Sea in N.Y.C. 50 of 64 CHRISSY TEIGEN Mike Pont/WireImage in a short-sleeve white mini dress with a metallic clutch and Kurt Geiger London heels at the Target Wonderland VIP event in N.Y.C. 51 of 64 BEHATI PRINSLOO Desiree Navarro/WireImage wears a sporty black-and-orange mini dress and simple black heels to promote the Victoria's Secret Fashion Show in at AOL Studios in N.Y.C. 52 of 64 GABRIELLE UNION Bobby Metelus/Getty in a white Rosie Assoulin dress with a high-low hem, green belt and platinum Giuseppe Zanotti sandals at a Hubolt and Haute Living dinner hosted by her husband Dwyane Wade in Miami. 53 of 64 AMY ADAMS Alberto E. Rodriguez/Getty in a short-sleeve tangerine Roland Mouret dress and nude Christian Louboutin shoes at a 2015 TrevorLive event in L.A. 54 of 64 MIRANDA LAMBERT WireImage in a glimmering baby blue Gemy Maalouf bustier gown with H. Stern diamonds and a Tyler Alexander at the 38th Annual Kennedy Center Honors Gala in Washington, D.C. 55 of 64 CAREY MULLIGAN Hannah McKay/PA Images/Startraks in a green and gray geometric print Gucci gown with two sets of delicate Dana Rebecca Designs earrings at the Moet British Independent Film Awards in London. 56 of 64 JESSICA ALBA Jordan Strauss/Invision/AP in a strapless, floral-print Brock Collection dress and pointy metallic pumps with Harry Kotlar diamonds at the March of Dimes Celebration of Babies luncheon honoring the beauty mogul in Beverly Hills. 57 of 64 MARION COTILLARD Karwai Tang/WireImage in an embroidered Dior Haute Couture gown with a couple of subtle cut-outs at the Moet British Independent Film Awards in London. 58 of 64 SELENA GOMEZ Steve Granitz/WireImage in an off-the-shoulder Camilla and Marc number with thigh-high slit at the 102.7 KISS Jingle Ball in L.A. 59 of 64 ZENDAYA Jennifer Lourie/Getty in a festive green loose top and slacks and at T-Boz Unplugged event in Hollywood. 60 of 64 OLIVIA WILDE Stefanie Keenan/Getty in a black Ralph Lauren Collection jumpsuit at a bash hosted by Ralph Lauren and Vanity Fair to celebrate the SAG-AFTRA Foundation in Beverly Hills. 61 of 64 MINDY KALING Jon Kopaloff/FilmMagic in a multi-color Peter Pilotto number her dad picked out and knee-high boots (plus her favorite Kate Spade New York polar bear cocktail ring) at the March of Dimes celebration of Babies luncheon in Beverly Hills. 62 of 64 GINA RODRIGUEZ Paul Morigi/WireImage in a floral-accented Georges Chakra dress also featuring sheer sleeves at the 38th Annual Kennedy Center Honors Gala in Washington, D.C. 63 of 64 VANESSA HUDGENS David Livingston/Getty in a plunging gown with lace sleeves and a high slit at a premiere of MTV’s The Shannara Chronichles in L.A. 64 of 64 KATIE HOLMES Sergi Alexander/Getty in a red, sleeveless dress with see-through panels and a coordinating ruby pedicure at party hosted by Ocean Drive magazine in Miami.