The Grammy Awards 2015: Red Carpet

Jessie J, in Ralph & Russo, attends the 57th Annual Grammy Awards in LA.

Kelly Osbourne, in Christian Siriano, attends the 57th Annual Grammy Awards in LA.

Charlie XCX, in Moschino, attends the 57th Annual Grammy Awards in LA.

Sam Smith, in Armani, attends the 57th Annual Grammy Awards in LA.

Haim - aka Este, in Chloé, Danielle and Alana, the latter two wearing Stella McCartney - attend the 57th Annual Grammy Awards in LA.

Madonna, in Givenchy Haute Couture by Riccardo Tisci, attends the 57th Annual Grammy Awards in LA.

Gwen Stefani, in Atelier Versace, attends the 57th Annual Grammy Awards in LA.

Ed Sheeran attends the 57th Annual Grammy Awards in LA.

Annie Lennox attends the 57th Annual Grammy Awards in LA.

Pharrell Williams and his wife Helen Lasichanh attend the 57th Annual Grammy Awards in LA.

Tom Jones attends the 57th Annual Grammy Awards in LA.

Anna Kendrick, in Band Of Outsiders, attends the 57th Annual Grammy Awards in LA.

Ariana Grande, in Versace, attends the 57th Annual Grammy Awards in LA.

Taylor Swift, in Elie Saab, attends the 57th Annual Grammy Awards in LA.

Chrissy Teigen, in Emilio Pucci, attends the 57th Annual Grammy Awards in LA.

Katy Perry, in Zuhair Murad, attends the 57th Annual Grammy Awards in LA.

Neil Patrick Harris and David Burtka attend the 57th Annual Grammy Awards in LA.

Nick Jonas attends the 57th Annual Grammy Awards in LA.

Nicki Minaj, in Tom Ford, attends the 57th Annual Grammy Awards in LA.

Olivia Culpo wears DSquared2 to attend the 57th Annual Grammy Awards in LA.