LORELAI: A bizarro Battle of the Bands.
A Battle of the Bands is a contest in which bands, usually rock or metal, but not always, compete for the title of best band, with the winner usually chosen by popular vote from the audience. They are often held as part of live music events, and sometimes at schools and universities. Their history goes back to at least the big band era of the 1930s.
The Annotated Gilmore Girls 