I was just thinking about Paramore, and this just came to me.

Rappin' about Paramore, they're just the band you gotta adore
Give it up for Zac, cause I got his back.
Look at Josh, his looks are oh my gosh!
The fans of Jeremy, they're like, will you marry me?
Last, but not least, you can't forget Hayley, she's so awesome, I got nothin' to say-ly!

Maybe it's not exactly a rap. Just a bunch of rhyming words. Lol. But if you can make it fit into a tune, good for you. And the order I listed the band members, has nothing to do with favorites, they just popped into my head like that.