Life This Day in Music History: April 9, 1977 By 100.7 BOB FM Posted on April 9, 2015 Share Tweet Share Share Email April 9th, 1977: ABBA becomes #1 on the US music charts for “Dancing Queen”! Such a groovy music video! Related Items:1977, ABBA, Dancing Queen, Music History, Music video, This Day In Music Share Tweet Share Share Email Recommended for you Muse Releases New Music and New Video John Lennon Interview Tapes Go Up For Auction ABBA To Release Five New Songs In 2021 As Reunion Is Delayed By Pandemic Comments