James Spader isn't going to be the only high-profile name joining 'The Office' next season. Singer and sometime-actor Josh Groban has signed on to play the brother of Ed Helms' character, WASPy salesman Andy Bernard.

Groban's only racked up a few acting roles, recently appearing in the movie 'Crazy, Stupid, Love' as Emma Stone's boyfriend and on the first season of 'Glee' as a pompous version of himself. But he could be a formidable match for Andy, who's known around Dunder Mifflin for his a cappella skills. Do we smell a duet?

Earlier in the week, the show announced that Stephen Collins ('7th Heaven') and Dee Wallace ('E.T.') will play Andy's parents.

[via Huffington Post]