What was the name of the band that drowned in the film "The Simpsons Movie"?

"The Simpsons Movie" is a 2007 American animated comedy film based on the Fox animated sitcom "The Simpsons" created by Matt Groening. The film was directed by series veteran David Silverman and stars Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith, Hank Azaria, Harry Shearer, Pamela Hayden, Tress MacNeille, and other recurring actors reprising their roles from the series, with Albert Brooks joining for the film.

The plot follows the Simpson family as they grapple with the fallout of Homer Simpson’s reckless actions, which lead to Springfield being imprisoned under a massive glass dome by the Environmental Protection Agency (EPA), the family's eviction from the town, and a strain on their relationship with him.

After finishing a concert at Lake Springfield, the band Green Day tries to engage the audience in a discussion about the environment, but they refuse to listen and throw garbage at them. The pollution in the lake erodes the band's barge, causing them to be drowned. During their memorial, Grampa Simpson has a spiritual experience and prophesies that a disaster will befall Springfield, which only Marge takes seriously.