Colby O'Donis Colón (; born March 14, 1989) is an American singer. He is best known for his guest appearance on Lady Gaga's 2008 single "Just Dance" which peaked atop the Billboard Hot 100, spent over 11 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 recruited O'Donis to do so; O'Donis was Lady Gaga's labelmate on Akon's KonLive Distribution label, to which he signed in 2007. Released by KonLive's joint venture with Geffen Records, his debut studio album, Colby O (2008), peaked at number 41 on the Billboard 200. Its lead single, "What You Got" (featuring Akon) peaked within the top 20 of the Billboard Hot 100, along with his guest performance alongside Kardinal Offishall on Akon's single "Beautiful" that same year. Colby O served as his only release on a major label, although he has since written songs for other artists including Jordan Knight and Che'Nelle.
