Calling all Harmonizers! Get the low-down on the best thing ever to have X-ploded from the X Factor boot camp.

This is the first ever, 100% unofficial book about Fifth Harmony, the amazing girl group taking the whole world by storm! The book charts their rise through X-Factor USA to the release of their first single in their quest for international stardom. All the essential details are inside for Harmonizers to test their knowledge of the girls' early days, plus loads of photos, quotes, profiles, games and more. So whether the girls have got you through tough times or just helped to make you smile, if you love their music you'll love this book!

Fifth Harmony are the most amazing all-girl group and are the most successful group to have come out of X Factor USA. Now signed to Simon Cowell's music label, they released their first album - Reflection - in 2015 and are currently in the studio recording their follow-up album.