MUST WATCH: MEGHAN TRAINOR, JIMMY FALLON AND THE ROOTS PERFORM "ALL ABOUT THAT BASS" ON CLASSROOM INSTRUMENTS

Mariah Carey, Idina Menzel, Robin Thicke and Carly Rae Jepsen are some of the artists who performed songs with Jimmy Fallon on classroom instruments.

Another name is added, Meghan Trainor joined the list of the artists who sang with Jimmy Fallon and The Roots.

Watch Jimmy Fallon with his latest rendition of "All About That Bass" with Meghan Trainor and The Roots