In the 1978 film, The Buddy Holly Story, Gary Busey stars as Buddy Holly in an Oscar-nominated performance; Busey even performs the songs himself rather than having them dubbed in, as is the usual custom.  Gary Busey was previously in a rock band called Carp; I have a copy of their debut self-titled album, Carp that was released on Epic Records in 1969. 

(June 2013/1)