The Last Days by Scott Westerfeld

The Last Days(Audiobook)
(The second book in the Peeps series)
(2006)
A novel by Scott Westerfeld
Strange things are happening: old friends disappearing, angels (or  devils) clambering on the fire escapes of New York City. But for Pearl,  Moz, and Zahler, all that matters is the band. As the city reels under a  mysterious epidemic, the three combine their talents with a vampire  lead singer and a drummer whose fractured mind can glimpse the coming  darkness. Will their music stave off the end? Or summon it?
Set against the gritty apocalypse that began in Peeps, The Last Days is  about five teenagers who find themselves creating the soundtrack for the  end of the world.