St. Louis (KSDK) - The heat and humidity couldn't stop the music at The Muny Monday night.

It was opening night for "Joseph and the Amazing Technicolor Dreamcoat."

Justin Guarini stars in the show and even wears a Cardinals jersey for a scene.

Guarini was the runner up to Kelly Clarkson in the first season of American Idol.

The show runs through Sunday.

KSDK