What is the hardest song in rock band?

ROCK BAND:

Guitar: Green Grass and High Tides

Drums: Won't Get Fooled Again by The Who

Bass: Run to the Hills by Iron Maiden

Vocals: Run to the Hills by Iron Maiden

ROCK BAND 2:

Guitar: Painkiller by Judas Priest

Drums: Panic Attack by Dream Theater

Bass: Panic Attack by Dream Theater

Vocals: Tangled Up in Blue by Bob Dylan