Originally Posted by BoyDay
I had an idea earlier that I was wondering about. I know you can go for the 100% a song on expert achievement as long as any noise is being made into the mic (e.g. a fan) for the Beastie Boys song, but I was wondering if you'd still be able to pass all other songs using this technique? (not worrying about stars or %, just pass/fail). If so you could leave your 360 on for the entire time with your mic next to a fan or something and let it sail through the setlist as a vocalist. Even if it only works on medium it'd get you the medium achievement plus the bathroom break one.
I might give it a go later if nobody posts on here to say they've already tried and failed using this method.
good idea...lemme know how it works out!