These two sisters just performed the most epic wedding toast song!

A wedding toast: It's usually the stuff of pre-wedding nightmares, but not for these bridesmaids!

These two sisters hilariously hit the mic for a surprisingly sentimental and informative toast in honour of their sister, Caitlin.

Using hits like Tracy Chapman's "Give Me One Reason," the Jackson 5's "I Want You Back," the Backstreet Boys' "Everybody," and Michael Jackson's "Black or White", these 'maids set the bar high for future vocal endeavors!

If you're penning your maid of honour speech this week, consider taking a cue from Kelsey and Maddie Hallerman's incredible mash up!