Ava Overstreet and her brother Chord are very close. Ava used to be very close with Nash as well, but his "band" took over his life. When Nash and Chord moved away, Ava was left with nothing but her best friend Shakira. When Chord, Nash, and Hot Chelle Rae, whom she has never met, show up at her door, she immediately...
[THIS IS 'DISGUISE'] 'And there’s a new girl in my life, one that treats me oh-so right. I never thought that this new flame would share your same last name... IT’S YOUR SISTER!’ ("Disguise" ~ Miracle Drug aka Hot Chelle Rae)
Spencer lost both of her parents and brother to a fatal car crash almost two years ago, and is now living in an orphanage. And there it's a known fact that unless you inherit plenty of money, you'll either be homeless, or if you're lucky living in some shitty motel. Being as inheriting a small fortune wasn't her case...