Randy Jackson already brings rock history to American Idol - as a professional musician, he's played with Keith Richards, Jerry Garcia and Journey - but last night he literally wore it on his sleeve with Worn Free's "Radio Clyde" T-shirt. The shirt was originally worn by Frank Zappa onstage in the late 70s after being given to him by a Scottish radio station of the same name.

With last night's show, Jackson joined the growing number of musicians, actors, [poptards] and entertainers who take pride in being a part of pop culture history with the comfortable, shirts offered by Worn Free.

Worn Free combines art, rock and roll and chic fashion into lines of hip T-shirts that make pop culture's history come alive, worn by celebrities, musicians and notable figures all over the world, including Robert Downey Jr., Jennifer Aniston [that'll make you want one!] and Robert Plant.