Just when we thought we couldn't be any more obsessed with Meghan Trainor's 'All About That Bass,' Jimmy Fallon had to come along and make it positively epic.

Last night (Sept. 4), the late night host aired a performance of himself and the 'Tonight Show' house band, the Roots, performing the hit alongside Meghan herself. The group covered the song using toy instruments, which gave it a completely new vibe.

With Meghan's great vocals and its empowering message, 'All About That Bass' is already an infectious track. However, Jimmy and the Roots take things to a whole other level. It took everything we had not to get out of our chairs and starting dancing. (Our favorite part? When everyone joined in to chant, "That booty, booty"!)

Check out Meghan, Jimmy and the Roots' amazing performance of 'All About That Bass' in the video above, and be sure to check out her good friend RaeLynn covering the hit in the video below!

RaeLynn Covers Meghan Trainor's 'All About That Bass' at PopCrush

More From MIX 108