Additionally, a trailer for the Wii version has been found (embedded above) showing the game being played "peripheral-free," which also reveals bubblegum covers of the White Stripes' "Fell in Love with a Girl" and The Who's "My Generation." Just a reminder: all of this is still a rumor, so don't get your hopes up until there's an official announcement.
From the screenshot:
"Now there's a new music game designed for the whole family to enjoy. Introducing Ultimate Band, designed for the Wii, PS3 and Xbox 360. Complete with game controllers shaped like real instruments - guitar, drum kit and microphone - (or use the instrument controllers you may already own), Ultimate Band allows you to rock your way from your basement to a world stage with the eventual goal of becoming the 'Ultimate Band.'
"Play over 30 current tracks by top artists including Avril Lavigne, the Plain White T's, the Jonas Brothers, Bowling for Soup, Miley Cyrus and more. Customize every aspect of your band with a broad range of character styles ranging from a typical rocker to a surfer, nerd, and more. And play your music at a mix of real and fantastical venues including a garage, fairgrounds, skate park, aquarium, hautned house and more. Rock your way to the top, alone or with your favorite band-mates.
"Retail price is $169.99 with instruments at $49.99 without instruments (compatible with current Rock Band instrument controllers). Rated E."