The Were Four — Alethea Kontis

Instead of the world ending in 2012, the majority of the population turned into were-beings of their totem animal. Peter, Quinn, Romeo and Sam are four (lame) shapeshifters (platypus, mosquito, piranha, sloth) who also happen to be best friends and members of a (terrible) garage band. But the local Battle of the Bands is happening on the full moon and the boys are forced to turn to Sam's non-were (Goth) sister Natalie to help them out...