Ed Sheeran
As always, the "Thinking Out Loud" singer is oh-so charming in Emporio Armani.
Ellie Goulding
Lookin' good, Ellie! The pop star showcases her curves in a plunging black Alex Perry dress with a sexy thigh-high slit.
Justin Bieber
The Biebs makes a splashy style statement in an all-red getup.
Hailey Baldwin
Ow ow! The model shows some serious skin in this strappy, foliage-print Versace bodycon.
Ruby Rose
The Orange Is the New Black star is razor-sharp in a tailored black Giorgio Armani Privé design complete with a cane.
Fifth Harmony
One word: Fierce!
Charli XCX
Never one to play it safe, the pop star grabs attention with her ruched silver Vivienne Westwood dress (complete with an S-E-X choker) and pink cheetah platform pumps.
Shay Mitchell
Drop it low, girl! The actress bares her décolletage in a cream embroidered Kayat gown with a center slit.
Gregg Sulkin
Bella Thorne's beau makes a rare appearance without his ladylove wearing Emporio Armani.
Andrea Bocelli
The world renowned tenor makes a handsome showing in a velvet jacket with black trousers.
Ashley Benson
The Pretty Little Liars star pairs a glitzy beaded Haney sheath with a BCBGMaxAzria blazer.
Pharrell Williams & Helen Lasichanh
Awe! The married pair hold hands as they strike a pose wearing coordinating jackets.
Tori Kelly
The 22-year-old keeps it classic with a sleek LBD.
James Bay
It's a fresh rocker look for the "Hold Back the River" singer.
Jason Derulo
Balancing a cigar and a drink, the singer strikes a pose in a fur-trimmed jacket with black jeans and sneakers.
Tallia Storm
Wowza! The 16-year-old makes an edgy fashion statement.
Afrojack
Keeping his shades on for the red carpet, the DJ makes a peace sign.
Macklemore & Ryan Lewis
The duo sport funky-fresh coats, with Macklemore in a tweed trench and Ryan in a varsity jacket.
Mark Ronson
Keeping it trendy, he dons a velvet suit for the occasion.
Diamond Platnumz
The musician slips on a white suit with a polka dot undershirt and pocket square.
Laura Whitmore
The night's red carpet co-host cuts a stylish figure in a white belted fit-and-flare with sheer sleeves.
Sway Calloway
Also stepping up as a fellow red carpet co-host for the evening, Sway whips out a classic look with a tux and merlot-colored tie.