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If You Cheat On Anna Kendrick, She'll Sing-Rap Shaggy's ‘It Wasn't Me’

This is aca-mazing

Anna Kendrick and James Corden make one hell of a couple, as they proved on Wednesday night's (June 22) Late Late Show. The duo sang and starred in Soundtrack to a Love Story, a fictional play based on their tumultuous and short-lived relationship.

Shaggy's hit 2000 song "It Wasn't Me" comes in when Corden's character cheats on Kendrick. How rude, right?! This serenade is appropriately followed by a sad breakup sesh with a pint of ice cream and Adele's "Someone Like You." Watch the betrayal below.

The way they belt out every tune -- from The Weeknd's "Can't Feel My Face" to Whitney Houston's "I Will Always Love You" — would make Pitch Perfect's Barden Bellas proud.