The aca-awesome Anna Kendrick reunited with her Into The Woods co-star and new host of The Late Late Show, James Corden, to settle once and for all, who is Los Angeles’ best a cappella singer. The only way for each to prove their merits? A Pitch Perfect style riff-off. The competitors were given themes and squared off, with one singer starting things off and the other taking what was put down and riffing it in a new direction. Kendrick proves that though she may be poison to Corden, Corden is just another b**ch that needs to move out of her way.

Watch, AFTER THE JUMP…