I have indeed, 'tis quite cool.
It kinda makes me want to listen to some Metric (The band that do demonhead's music) and some... I can't remember the name of the band that does Sex Bob-Omb's music, but I rarely get around to it.
The Scott Pilgrim books are awesome, just thought I'd share my opinion =D
Also:
"Scott"
"Yeah?"
"You're my clash at demonhead"
"Umm, thanks? Whatever that means..."
Made me lol.
But in the grapic novel it's Envy and Ramona that fights and Ramona has Scott poke Envy (in the same spot) and shortly after Todd loses his vegan powers