Although Hailey is best known as the lead singer of Jodeci and second-lead singer of K-Ci & JoJo, he participated on different solo projects as K-Ci, most notably his 1994 cover of Bobby Womack’s "If You Think You're Lonely Now", which peaked at number 17 on the Billboard Hot 100.
Along with younger brother, Joel (known professionally as "JoJo") and his father, Hailey recorded three gospel albums as "Little Cedric and the Hailey Singers"[3] beginning with the 1983 release I'm Alright Now by Atlanta International Records, Gospel.
Hailey continued to record with his brother as the duo K-Ci & JoJo, releasing five albums between 1997 and 2013.
Also, his cover of Bobby Womack's "If You Think You're Lonely Now" was featured on the soundtrack to the 1994 film, Jason's Lyric.
[6][7] The two Hailey brothers are cousins of R&B singers Fantasia Barrino, Dave Hollister, Calvin Richardson, and Stephanie Mills.