1 of 21
She knows how to get the party ‘Pop’-ing! Playing DJ at Popchips’s Playland event in N.Y.C., the , wearing a bondage-inspired AllSaints “Ayame” maxi dress, gets the tempos – and pulses! – racing!
2 of 21
MARY-KATE & ASHLEY OLSEN
Joining PEOPLE StyleWatch for a night of revelry, the mini mavericks opt for -and- boyfriend toppers at the JCPenney Miss for a Must event in N.Y.C., where guests traded in something they loathe for something they love!
3 of 21
4 of 21
Rocking a trademark bohemian frock and a bejeweled headband, the House of Harlow celebrates FNO on the West Coast at Vogue’s official celebration at the Beverly Center in L.A.
5 of 21
BROOKLYN DECKER, JUSTIN BIEBER & ANNA WINTOUR
They’re the three best friends that anyone could have! The supermodel, and Vogue editrix form a posh wolfpack at the Dolce & Gabbana soiree, hosted at the label’s N.Y.C. boutique.
6 of 21
Single-handedly boosting our nation’s commerce, the savvy ponders a purchase – or two! – at French Connection’s in-store bash, mixing high and low by pairing her floral frock with a $30 LPLP Linea Pelle for Target bag.
7 of 21
Continuing her Coach style streak, adds some punch to her all-black ensemble by way of her Coach Classics shoulder purse at the brand’s flagship store opening in London.
8 of 21
9 of 21
ANNA WINTOUR, DWYANE WADE & SJP
Maybe they’re duking it out for most fashionable? Vogue’s head honcho connects with NBA star Dwyane Wade and at QVC’s all-star event in New York’s SoHo.
10 of 21
Belt it, Blair! Adding some ambient sounds to the couture crush, the Gossip Girl croons at the Tiffany & Co. Fifth Avenue celebration in N.Y.C. wearing jewels by the line.
11 of 21
ASHLEY GREENE & TED GIBSON
Twilight’s vampire goes all-out glam in a chocolate Marc Jacobs dress, snakeskin pumps and a sleek hairdo by the celeb stylist himself at a Mark-sponsored bash at Gibson’s Fifth Avenue salon.
12 of 21
One of PEOPLE StyleWatch’s designers you must know, the promotes her Paper Crown line at Nordstrom in L.A. wearing a close-fitting V-neck sheath and Mary Jane pumps.
13 of 21
VICTORIA'S SECRET ANGELS
Erin Heatherton, Adriana Lima (in Jay Godfrey), Alessandra Ambrésio and Lily Aldridge embody the word bombshell, showing off dangerous curves at the line’s N.Y.C. event.
14 of 21
HAYDEN PANETTIERE & MICHELLE TRACHTENBERG
Two of Stuart Weitzman’s star designers show off their creations – the “Hayden” and the “Michelle” – in curve-hugging ensembles at the line’s N.Y.C. event. Hayden wore a ruffled jumpsuit while Michelle opted for a tweed strapless dress and an Erickson Beamon necklace.
15 of 21
One of FNO’s spokes-singers, the Glee rocks a belted black shirtdress with booties and bombshell waves at Saks Fifth Avenue in N.Y.C.
16 of 21
Pretty in pink, the Bridesmaids star tries out the popular red-and-pink color-mixing trend, pairing her striped fuchsia frock with lipstick-red pumps at the Bottega Veneta party in N.Y.C.
17 of 21
Sunglass Hut’s eyewear ambassador does duty, wearing an A.L.C. tank with a slouchy blazer and ivory maxi skirt, both by Vanessa Bruno, to the eyewear line’s N.Y.C. fete.
18 of 21
Also at Saks Fifth Avenue in N.Y.C., the sings his heart out in a sharply tailored suit and sneakers.
19 of 21
The supermodel shows she’s still got it at an N.Y.C. Lanvin party, wearing a sleek, shiny black frock with coordinating pumps and major golden jewels.
20 of 21
EDDIE CIBRIAN & LEANN RIMES
Though he kept his shirt on this time while supporting Bloomingdales’s Charisma linens, the actor still looks smoking as he attends the department store’s N.Y.C. bash with his , who wore a draped white dress, golden accessories and snakeskin clutch.
21 of 21
“I like wearing nice suits that fit nice!” the SNL star joked to PEOPLE of his style philosophy at Coach’s N.Y.C. Bash.
Liam Hemsworth Surprises Miley Cyrus with Custom Necklace of His Nickname for Her 25th Birthday — See the Gift!
Serena Williams Shows Off Gorgeous New Wedding Ring & Daughter Alexis' Passion for Fashion!