Yelling ‘Freebird!’ Exposed in WSJ – Rock’s Oldest Joke: Yelling ‘Freebird!’ In a Crowded Theater
Yelling “Freebird!” has been a rock cliché for years, guaranteed to elicit laughs from drunks and scorn from music fans who have long since tired of the joke. And it has spread beyond music, prompting the Chicago White Sox organist to add the song to her repertoire and inspiring a greeting card in which a drunk holding a lighter hollers “Freebird!” at wedding musicians.

Freebird is fine, but I’ve always preferred yelling “Zepellin” myself:)