When Keith Richards’ hardcover confessional Life made it to the New York Times bestseller list in 2010 and hung on for 22 weeks, it showed the publishing industry just how lucrative a hard-livin’ rocker’s tell-all could be. Baby boomers can now air guitar to the pages of Steven Tyler, Sammy Hagar, Greg Allman, Rod Stewart, Patti Smith, Ozzy Osbourne and Pete Townshend. Then there are the books by Gen X rock gods like Slash, Anthony Kiedes, Tommy Lee and Duff McKagan. Which begs the question: Who’s left? Meet the new singers lugging publishing contracts—and find out how much dirt they’re ready to dish.