(2) Besties Selena Gomez and Taylor Swift hugged on the red carpet.
(3) Wiz Khalifa lit up on the red carpet.
(4) Ciara showed off some major side boob in her sexy dress.
(5) Chrissy Teigen showed off her baby bump while she hugged her hubby John Legend.
(6) Adele wore a figure hugging black sequins gown and her hair in a short bob and Harry Winston jewelry.
(7) Demi Lovato vamped it up in a black dress with a plunging neckline.
(8) Bieber kissed his littler brother on the carpet.
(9) Janelle Monae wore a white lace top and a round black skirt.
(10) Zendaya rocked a black suit with a white blouse.
(11) Dave Grohl wore a plain black t-shirt under a black jacket.
(12) Ariana Grande wore a red ball gown.
(13) Cam was bright in her yellow strapless dress.
(14) Sam Smith was dapper in his blue suit.
(15) Johnny Depp wore sunglasses on the red carpet.
(16) Bella Hadid revealed her ample cleavage in her black dress with a plunging neckline.
(17) Taylor Swift showed off her rock-hard abs in an orange crop top and a hot pink skirt.
(18) The Weekend and arrived with Bella Hadid.
(19) Zuri Hall wore a stunning black lace dress.
(20) Jane Seymour wore a bright blue dress with a sexy neckline.
(21) Kaley Cuoco wore a white sequins pants outfit with a plunging neckline.
(22) Victoria's Secret model Alessandra Ambrosio showed off her model's body in a black cut out dress.
(23) Andra Day wore a wild green dress.
(24) Vanessa Lachey's lacey dress showed off her gorgeous legs.
(25) Brandi Carlisel paired her black pants and top with a black hat.
(26) Florence Welch wore a pink Gucci gown.
(27) Justin Bieber bleached his hair blond for the event and sported a faint mustache.
(28) Country cutie Carrie Underwood wore a stunning black strapless dress.
(29) Tove Lo wore a black lace see-through dress.
(30) Ellie Goulding was pretty in pink with a diamond choker.