Listen to Rock This Party (Everybody Dance Now) online. Rock This Party (Everybody Dance Now) is an English language song and is sung by Celebration Allstars. Rock This Party (Everybody Dance Now), from the album World's Greatest 40th Birthday Party - The Only Fortieth Celebration Album You'll Ever Need !, was released in the year 2014. The duration of the song is 4:07. Download English songs online from JioSaavn.