Brie Larson Plays The Crazy Fourth Haim Sister

(Radio.com) Fans know Brie Larson can act, but did they know she was secretly the fourth Haim sister? Haim recently appeared in a Funny or Die video with Larson to imagine what life would be like if they had an estranged, crazy sister who desperately wanted to join their band.

In the a Funny or Die comedy video, Larson plays "Frime Haim," who still lives at home, keeps nothing but Kool-Aid in the fridge and stole their grandmother's identity.

Trying to win them over, Larson plays a song she claims to have written, which ends up just being a rip-off of The Beatles' "Hey Jude." Watch the craziness unfold here.