High Quality Content by WIKIPEDIA articles! "Acapella" is a song performed by American alternative artist Kelis, taken from her fifth studio album Flesh Tone. The song is a departure from her past singles in that it is a dance/electronica track rather than hip hop/R B influenced. The song was first premiered on her Twitter page and her official website in November, but was digitally released February 23, 2010 as the lead single from the singer`s upcoming album.