Coleridge Gardner Tillman (born January 17, 1989), who goes by the stage name Sebastian Kole, is an American singer-songwriter and record producer from Birmingham, Alabama. He is currently signed to EP Entertainment and Motown Records. Prior to his work with Motown, Sebastian was known for co-writing on a Jennifer Lopez and Flo Rida single titled "Goin' In". Since signing with EP Entertainment/Motown in 2012, Sebastian worked with label-mate Alessia Cara, co-writing and co-producing her album, including her debut single "Here" (along with Grammy-winning producers Andrew "Pop" Wansel and Oak).