“Free Beer” would guarantee an audience.
See post #15: “They Got Berries and Things, Too” would be awesome.
If you have a ragtime-singing frog on a high wire. 
The Donkey Show
None of them are very good, but No. 4 is so much more awful than the rest of them. First off, it’s got the word “rebel” in it. Few things make me doubt whether a performer is rebellious more than if they feel the need to put the word “rebel” in their stage name. Plus, it’s a cutesy acronym. The only thing that could make it worse is if you rendered it in Comic Sans.
Gun to my head, I guess that I would go with No. 2 or No. 6. The former is blandly inoffensive, if nothing else, while the latter makes me at least think that the story of how you came up with it will be amusing. Why ARE the weeds furious? Did you do something to them?
In honor of the OP’s request, I’d like to propose that the OP’s name be changed to “Feedback”.
Will anyone second the nomination…?
Opening act “Free Beer Tomorrow” would have them coming back for more.