Superfans : Music's most dedicated: From the Beatlemania to the Beyhive

Musicians and bands have been adored since the first notes were recorded, but it was Beatlemania in the '60s that heralded the birth of the SUPERfan - a breed of music obsessive that literally worshipped their idols.

Superfans examines the crazed followers and fan groups that surround the modern music scene in a witty, fun and tongue-in-cheek way.

From Beyonce's Beyhive, the Britney Army, Gaga's Little Monsters, Nicki Minaj's Barbz to Justin Beiber's Beliebers - author Tobias Anthony goes deep into these fan groups to see what makes them tick.