To enter to win one of the 16 Rock Band prizes, entrants must re-tweet a message to @logotv that will be sent out today at 11amET. You can re-tweet the message as many times as you want, and each tweet will be counted as an entry. Prizes are:

Grand Prize winner (1 winner) - one Rock Band 2 Bundle (includes microphone, guitar, drum kit, and game disk)
First Place winners (5 winners) - one Rock Band 2 game disk and one Rock Band microphone
Second Place winners (10 winners) - one Rock Band 2 game disk

Rules and regulations