Gratitude is by the American hip hop group Beastie Boys. It is in Guitar Hero 5 at the venue, Club Boson. The bonus challenge is for guitar. To get gold you need to tap 15 tap notes (if you have a GH:WT or GH:5 guitar controller,) for platinum you need 24 taps, and for diamond you need 35 taps. This will earn you Judy Nails's Big Knee Pin outfit.