Here’s one way to increase sales of a dumb game. Oh, I’m sure Lips is a fine game for wannabe singers, but it’s not for me. Today, Microsoft announced that the wireless mics that come with Lips will be compatible with Rock Band 2 and Guitar Hero: Metallica. Support for RB2 won’t happen until the Summer, but the Lips mic works with GHM now. Microsoft promises additional compatibility with other games later this year.