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Rapper Big Sean and singer Ariana Grande (Photo by Jason Merritt/Getty Images) 
Charli XCX (Photo by Larry Busacca/Getty Images for NARAS) 
Haim (Photo by Larry Busacca/Getty Images for NARAS) 
Producer Diplo, singer Madonna, and rapper Nas (Photo by Jason Merritt/Getty Images) 
Gwen Stefani (Photo by Jason Merritt/Getty Images) 
Nick Jonas (Photo by Jason Merritt/Getty Images) 
Model Chrissy Teigen and recording artist John Legend (Photo by Larry Busacca/Getty Images for NARAS) 
Sam Smith (Getty Images) 
Sean Paul (Getty Images) 
Billy Ray Cyrus (Photo by Jason Merritt/Getty Images) 
Ariana Grande (Photo by Jason Merritt/Getty Images) 
Jenny Lewis (Photo by Jason Merritt/Getty Images) 
Nicki Minaj (Photo by Jason Merritt/Getty Images) 
Dave Grohl (Photo by Jason Merritt/Getty Images) 
Weird Al Yankovic (Photo by Jason Merritt/Getty Images) 
John Mayer (Photo by Jason Merritt/Getty Images) 
Sia (Photo by Jason Merritt/Getty Images) 
Anna Kendrick (Photo by Jason Merritt/Getty Images) 
Recording Artists Smokey Robinson, Lady Gaga and Tony Bennett (Photo by Larry Busacca/Getty Images for NARAS) 
Taylor Swift (Photo by Larry Busacca/Getty Images for NARAS) 
Katy Perry (Photo by Jason Merritt/Getty Images) 
Kim Kardashian and Kanye West (Photo by Larry Busacca/Getty Images for NARAS)
LOS ANGELES — From Katy Perry and Taylor Swift to Weird Al Yankovic, the entire music industry was on hand Sunday night for the Grammy Awards at the Staples Center in Los Angeles.