A rock & roll fairy tale.
Jason plays guitar in a teenage garage band called the Assorted Zebras, but they have no fans, no gigs, and they're going nowhere. Even worse, Jason has a crush on their lead singer, but she doesn't seem interested in him at all.
Then Jason steals instruments from the fairy world. Soon the band is enchanting crowds, and Jason is a step closer to the girl he likes, but the new gear is brimming with destructive magic they can't control.
Their shortcut to success has cost a troupe of innocent fairies their livelihood and turned Jason and his band into enemies of the powerful Queen Mab, who sends hunters to track them down, including one of the most dangerous creatures in Faerie...a small unicorn named Buttercake.
I bought the rest of the series. Only books I've ever gotten.