No Doubt, Gwen Stefani's band who had a hit with the song "Don't Speak", have sued the publishers of Band Hero, Activision Blizzard, over their likeness in the game. The band complained that they were breaching their contract by allowing them to be turned into a virtual karaoke act.
In the game, it's possible to unlock Gwen Stefani as a playable character and get her to sing the Rolling Stones' Honky Tonk Woman. The lawsuit says that this: "results in an unauthorized performance by the Gwen Stefani avatar in a male voice boasting about having sex with prostitutes".
The band are protesting "fraudulent inducement" and breach of contract, seeking unspecified damages and an injunction that would stop Activision from distributing the title. Back in September, Courtney Love declared that she was going to "sue the s**t out of" the company for similar reasons - allowing Kurt Cobain to sing Bon Jovi songs.
Meanwhile, rival franchise Rock Band has avoided similar problems by not featuring real rockers as avatars with the exception of the tightly controlled Beatles: Rock Band title.