The Less Famous One (Big Time Rush)

Marty is the sister of the famous James Maslow from Big Time Rush. She and James are parentless, but are doing okay. They end up using most of James' singing and acting royalties, though. James doesn't want Marty to meet his friends, but Marty is determined to do just that. Everything goes as planned... Well, almost. Marty didn't expect to fall in love with one of them!