Rachel Bloom, star of The CW's Crazy Ex-Girlfriend, said Josh Groban will appear on the show in Season 3.
"Hey! @joshgroban is gonna be on #CrazyExGirlfriend!" she posted Monday night alongside a video of the two.
Groban shared the same video with the caption, "Oh hey @Racheldoesstuff. Thanks for having me on your brilliant show! I know it's secret but this is a DM right?"
The show is known for its cast of Broadway luminaries and stars Donna Champlain (Billy Elliott, Sweeney Todd), and featured Tony-nominee Santino Fontana in its first two seasons. There are elaborate musical numbers in every episode. Season 3, debuting on October 13th, will focus on Bloom's character Rebecca Bunch and her life after being left at the altar by Josh, played by Vincent Rodriguez III.
Groban will be playing "a mysterious and helpful stranger who will sing in the show," according to Entertainment Weekly.
Groban recently finished a Tony-nominated run in Natasha, Pierre & The Great Comet of 1812.