history: I never believed my grandpa was a rockstar until he jumped onto the stage and bit the head off of a bat. Then he belted the words to 'Crazy Train' and jumped out into the audience! Wow! My grandpa always said he was a rockstar back in his day_comma_ but I never believed him. 
current: Why don't you believe him? He made have been quite the big name back in his day.
next: I don't know if he was famous, but the other day, he got on stage, bit the head off of a bat, then belted the words to Crazy Train. It was unbelievable!