The following are key quotes from the 57th Grammys, held Sunday at the Staples Center in Los Angeles:
Stay with me -- or not
"I want to thank the man who this record is about, who I fell in love with last year. Thank you so much for breaking my heart because you got me four Grammys."
-- Sam Smith, on accepting the award for Record of the Year for his mega-hit "Stay With Me"
King of understatement
"I'm having a really, really, really good night."
-- Smith, accepting Song of the Year honors
Prince of activism
"Like books and black lives, albums still matter."
-- Prince, presenting the Album of the Year award
Daddy Beck
"We made this record at my house for the most part. So I'd like to thank my kids for letting me keep them awake a little bit extra longer."
-- Beck, the surprise winner in the Album of the Year category
Obama takes on rape, abuse
"Nearly one in five women in America has been a victim of rape or attempted rape. And more than one in four women has experienced some form of domestic violence. It's not okay. And it has to stop."
-- President Barack Obama, in an unexpected video appearance to promote the "It's on Us" campaign against sexual assault on college campuses and urge musicians to support his effort
No stealing
"There are many musicians who feel that they cannot make a living anymore... If you wouldn't steal an apple from a store, why would you steal an album?"
-- Three-time Grammy winner Rosanne Cash, the daughter of folk legend Johnny Cash, to reporters
Women on top
"We all love to see women on top, and as the record shows, this next powerful woman is always on top. She does it all by living for love."
-- Rapper Nicki Minaj, introducing a performance by Madonna
Field of dreams
"Dreams don't have deadlines. Believe in yourself."
-- Rapper and host LL Cool J