Rachel Bloom, Colbert Prove 'Anything Can Be a Musical' on The Late Show

Musicals don’t just happen — unless you’re with Rachel Bloom.

The Crazy Ex-Girlfriend star appeared on The Late Show Tuesday, and within moments had Stephen Colbert crooning about his musical-theater ineptitude.

The Golden Globe winner’s attempt to explain how songs fit into narrative storytelling quickly veered into self-deprecating territory as she taunted herself about an alleged weight gain in the wake of receiving her first major award.

Watch “Anything Can Be a Musical” above, then drop a note in the comments. (Crazy Ex-Girlfriend airs Mondays at 8/7c on The CW.)