Beyoncé 1+1 music video. 1+1 is a song performed by American RnB singer Beyoncé Knowles. The track is the first song on Beyoncé's 4th studio album 4. 1+1 is an unofficial single.
Beyoncé official music video for the track 1+1. '1+1' is Beyoncé's fourth album 4. The song debuted on May 25, 2011 on American Idol. It is the first song on the ablum 4. It serves as a mix of contemporary R&B and soul music.