Remember Anna Kendrick’s Pitch Perfect audition involving a solo cup? Well, Emma Stone and Maya Rudolph just blew that out of the water on last night’s season finale of Maya & Marty. On it, the duo performed an a cappella cover of Robyn’s “Call Your Girlfriend” using a single “instrument” to keep the beat: butter tubs. Yep. And according to Maya, she’s been practicing at home for years to perfect her skills. Well, Maya, it was time well spent.