Life This Day in Music History: May 21, 2011 By 100.7 BOB FM Posted on May 21, 2015 Share Tweet Share Share Email May 21, 2011 Adele’s song “Rolling in the Deep” became #1 on the U.S charts! Congrats Adele! Related Items:#1 hit, 2011, Adele, May 21 2011, Rolling in the Deep, This day in music history Share Tweet Share Share Email Recommended for you This Day in Music History: September 17, 2011 This Day in Music History: September 3, 1966 This Day in Music History: July 30, 1955