Did Gregg Allman ever sing I've had the time of your life?

No, Gregg Allman did not sing "I've Had the Time of My Life." The song is famously performed by Bill Medley and Jennifer Warnes, and it was featured in the 1987 film "Dirty Dancing." Gregg Allman is known for his work with the Allman Brothers Band and his solo career, but this particular song is not associated with him.