Superfan : A Novel.

'Superfan' is a novel about a pop idol and his superfan, whose stories shockingly collide. Freshman Minnie is adrift at college when she discovers a boy band called HOURglass and the online forums that worship them. She especially loves Halo, whose sharp edges feel somehow familiar. Minnie soon pours everything into her new fandom, but when a scandal threatens to expose Halo to harm, Minnie decides that she is the only one who can save him.