(092315)brFifth Harmony performs an acoustic version of latest single Im In Love With A Monster. SUBSCRIBE: On Air with Ryan Seacrest on .brbrFifth Harmony stopped by the studio to perform their fun new single, BO$$. SUBSCRIBE: On Air with Ryan Seacrest on YouTube The .brFifth Harmony performs an acoustic version of their hit single Worth It. SUBSCRIBE: On Air with Ryan Seacrest on YouTube The official .