Colby O'Donis Colón is an American singer. He is best known for his guest feature on Lady Gaga's 2008 single "Just Dance", which peaked atop the Billboard Hot 100, spent over eleven months on the chart, and received diamond certification by the Recording Industry Association of America (RIAA). Due to label conflicts, Senegalese-American singer Akon was unable to perform on the song and subsequently enlisted O'Donis to do so; O'Donis was Lady Gaga's labelmate on Akon's KonLive Distribution label, to which he signed the year prior.

"Just Dance" is the debut single by American singer Lady Gaga. She co-wrote the song with Akon and his producer RedOne. It also features vocals from Colby O'Donis and was released on April 8, 2008, as the lead single from Gaga's debut studio album, The Fame. The song was written by Gaga in 10 minutes as "a happy record". "Just Dance" lyrically speaks about being intoxicated at a club.