1 of 45
Helen Mirren, with composer Andrew Lloyd Webber, gets in the spirit Sunday night at the School of Rock Broadway opening in N.Y.C.
2 of 45
BAND OF BLONDS
Inside the theater, parents Liev Schreiber and Naomi Watts take their seats with sons Sasha, 8, and Kai, 6.
3 of 45
CUTE COUPLE CONVENTION
Also at School of Rock, husbands David Burtka and Neil Patrick Harris catch-up with Holland Taylor and her girlfriend Sarah Paulson.
4 of 45
ALL HAIL THE QUEEN
Adele stops by the Cologne, Germany, set of 2015! Menschen, Bilder, Emotionen on Sunday.
5 of 45
LIFE'S A BEACH
On Friday, Hugh Jackman enjoys the December weather on North Bondi Beach in Sydney, Australia.
6 of 45
Mariah Carey rocks a black corset while performing with the man of the night on Saturday at Hot 97's Busta Rhymes and Friends: Hot for the Holidays concert in Newark, New Jersey.
7 of 45
John Stamos and Bob Saget meet outspoken puppet Tyrone backstage at Saget's Broadway show Hand to God in New York City on Sunday.
8 of 45
At Sunday's Kennedy Center Honors in Washington, D.C., Kerry Washington looks gorgeous in a black gown adorned with feathers.
9 of 45
CAPITOL HILL CHIC
Inside, Miranda Lambert looks as elegant as ever at the 2015 Kennedy Center Honors in Washington, D.C., on Sunday.
10 of 45
SPEAK NO EVIL
Behati Prinsloo teases photographers while arriving at JFK airport in New York City on Saturday.
11 of 45
ORANGE YOU GLAD?
Redhead Amy Adams dons an orange dress to speak at TrevorLIVE L.A. on Sunday in Los Angeles, where Jazz Jennings, HBO's Michael Lombardo and The Walt Disney Company were honored for their work with LBGTQ causes.
12 of 45
THE HUNKY BUNCH
Leonardo DiCaprio and Tom Hardy discuss their film The Revenant at a BAFTA screening in London on Sunday.
13 of 45
TWO PRECIOUS PAIRS
Cash Warren and wife Jessica Alba bring daughters Honor, 7, and Haven, 4, to Sunday's Baby2Baby Holiday Party presented by Tiny Prints in Beverly Hills.
14 of 45
PLAYER TO PLAYER
Olivia Wilde, Will Forte and Jason Sudeikis stay focused on the Orlando Magic vs. Los Angeles Clippers game on Saturday at the Staples Center in L.A.
15 of 45
British beauties! At the Moët British Independent Film Awards in London, Saoirse Ronan, who won the Best Actress award for Brooklyn, shares a hug with Kate Winslet, who took home the Variety Award prize on Sunday.
16 of 45
Domhnall Gleeson poses in (mock) anger with Tom Hardy's personalized bottle of champagne – and his Best Actor award – at the Moët British Independent Film Awards.
17 of 45
LET IT SNOW
It's a winter wonderland! Tori Spelling plays around in the snow with her children – Finn, 3, Hattie, 4, Liam, 8, and Stella, 7 – at the Santa's Secret Workshop benefiting L.A. Family Housing (sponsored in part by Mabel's Labels) in Los Angeles on Saturday.
18 of 45
OLE' ST. NICK
Meanwhile at the event, Sarah Michelle Gellar snuggles up to Santa Claus.
19 of 45
LOTS OF LAUGHS
The Hateful Eight stars Bruce Dern, Walton Goggins, Channing Tatum, Samuel L. Jackson and Demién Bichir can't keep the giggles at bay during a press conference for the film in Los Angeles on Saturday.
20 of 45
ALL AROUND THE WORLD
In the latest stop on her 1989 world tour, Taylor Swift hits the stage in Brisbane, Australia, on Saturday with a bevy of back-up dancers.
21 of 45
Russell Simmons, Rosario Dawson and Miguel get smiley at the Sixth Annual Bombay Sapphire Artisan Series Grand Finale at Art Basel in Miami Beach on Friday.
22 of 45
Tom Cruise and NASCAR driver Jeff Gordon break out their tuxes for the 2015 NASCAR Sprint Cup Series Awards Show in Las Vegas on Friday.
23 of 45
MAN OF STEEL
Justin Bieber has nothing to be "Sorry" about! The singer shows off his abs while performing on stage at the Capital FM Jingle Ball in London on Sunday.
24 of 45
BEND IT LIKE …
Prince William shows off his soccer – or on his side of the pond, football – prowess during a stop by the Football for Peace Initiative in Birmingham, England, on Monday.
25 of 45
BUMP IT UP
Wladimir Klitschko is clearly on the nice list this year! The boxer (and Hayden Panettiere's fiancé) fist bumps with Santa Claus during an event in Berlin, Germany, on Saturday.
26 of 45
SEXY IN THE STANDS
David Beckham joins Chairman of Singapore ASEAN Para Games Organising Committee, Lim Teck Yin, during the men's team football 5-a-Side match between Singapore and Thailand on Sunday at the ASEAN Para Games 2015.
27 of 45
Bill Rancic, 3-year-old son Duke and wife Giuliana pop into the Kohl's Holiday Gifting Truck on Saturday in New York City.
28 of 45
Peter Frampton, Sheryl Crow and Aloe Blacc perform on-stage during the Imagine: John Lennon 75th Birthday Concert at The Theater at Madison Square Garden in New York City on Saturday.
29 of 45
BACK IN BLACK
Eva Longoria attends SHOP.com and Haute Living's celebration of art with Phillipe Hoerle-Guggenheim in Miami on Saturday.
30 of 45
NAUGHTY OR NICE
Cameron Fuller, David Bernon, Jack Quaid, Jack Falahee and Matt McGorry pose with Santa Claus at the Brooks Brothers holiday party with St. Jude Children's Research Hospital in L.A. on Saturday.
31 of 45
Olivia Wilde stops for a photo op during a party to celebrate the SAG-AFTRA Foundation at Ralph Lauren in Beverly Hills on Friday.
32 of 45
The Weeknd belts it out while performing at 102.7 KIIS FM's Jingle Ball (presented by Capital One) in Los Angeles on Friday.
33 of 45
Also at Jingle Ball: Selena Gomez, who later hit the PEOPLE photo booth.
34 of 45
On Friday, Tyra Banks celebrates Cindy Crawford at the Guthy Renker-hosted party for Crawford's new book, Becoming, in West Hollywood.
35 of 45
Hello there! Adrian Grenier goes jogging in Miami on Friday.
36 of 45
Jennifer Garner makes a quick morning coffee stop in Brentwood, California, before getting on with her Friday.
37 of 45
OFF-DUTY DAD & MOM
New parents Ryan Dorsey and Naya Rivera leave baby Josey at home while they attend the March of Dimes Celebration of Babies Honoring Jessica Alba on Friday in Beverly Hills.
38 of 45
Honoree Jessica Alba goes feminine in florals at the March of Dimes event.
39 of 45
Also at the March of Dimes event: Mindy Kaling, who opts for a '60s glam look at the luncheon.
40 of 45
He's back! Matt Damon heads to Washington, D.C., to hit the set of the next film in the Bourne series on Friday.
41 of 45
Parents-to-be Chrissy Teigen and John Legend head to the gym in L.A. side-by-side on Friday.
42 of 45
RISE & SHINE
The Leftovers star Justin Theroux keeps Kelly Ripa and Michael Strahan riveted as he recounts a tale during an appearance on Live! with Kelly and Michael in N.Y.C. on Friday morning.
43 of 45
Coldplay frontman Chris Martin celebrates his new album and new gig by stopping by the BBC Radio 2 studios in London on Friday.
44 of 45
LOVING THE LIMELIGHT
Sam Smith takes center stage on Friday during a performance at Qantas Credit Union Arena in Sydney, Australia.
45 of 45
ON THE RADIO
Amanda Peet strikes a pose in her chic black, white and gray ensemble at the SiriusXM studios in N.Y.C. on Friday.