Bridesmaid's duties usually involve planning the bridal shower, the bachelorette party, and fixing her train so she doesn't trip on it when she's standing up at the alter.

But Katie, a bridesmaid-turned-rapper, reminded everyone that we need to add “busting out in mad raps" to that list, specifically Eminem’s “The Real Slim Shady.”

A voice off camera asks all the wedding guests if the real "Slim Katie" would please stand up, and when Katie stood up, so totally delivered — using her own lyrics to tell the story of the bride and groom.

Everyone else can go home now. Katie just dropped the mic and raised the ante for ALL future bridesmaids.