Microsoft has said Xbox 360 instrument peripherals for Rock Band 2, Guitar Hero World Tour and Rock Revolution will all be compatible across all three games.
Word follows a similar announcement made by Sony yesterday, which added that SingStar microphones could be used with Rock Band 2 and Guitar Hero World Tour.
Microsoft karaoke game Lips, according to GameSpot, was absent from the compatibility list. Perhaps the tiny flashing lights are too off-putting.
Guitar Hero World Tour is due out for PS3, Xbox 360, Wii and DS later this year.
Rock Band 2 will be a timed exclusive for Xbox 360 in the US this September. European plans are unconfirmed - we're still to receive PS3, PS2 and Wii versions of Rock Band 1.
Rock Revolution for Xbox 360, PS3, Wii and DS is yet to be given a date.