Alabama Shakes pose backstage with their awards for Best Alternative Music Album, Best Rock Song and Best Rock Performance during the 58th Grammy Awards in Los Angeles, California February 15, 2016. (Reuters Photo)
Mark Ronson and Bruno Mars won two awards for "Uptown Funk," including record of the year. Ronson gave a shout-out to Prince, James Brown and George Clinton for being leaders in funk.
"This is dedicated to the fans right here," Mars added.
Mars introduced Adele, who sang "All I Ask," which they wrote together for her new album "25." She was accompanied with a piano behind her, but the audio sounded off and appeared to throw off her performance.
"The piano mics fell onto the piano strings, that's what the guitar sound was. It made it sound out of tune," Adele tweeted. "(Expletive) happens."
A spokesperson for CBS, where the Grammys aired, said "there was a brief 5-8 second technical issue that was out of our control."