Guitar Hero World Tour

Start up a Band with at least four players and set everyone to a lower difficulty, Beginner being the easiest. Play any song and make sure no one in the band misses a note. You can strum extra and stop your note streaks, but you cannot miss any notes.

-Vocals counts total notes just like any other instrument, not just phrases. So, it is possible to have a 4x multiplier, but have less than 100% notes hit.