Though The Office has had many interesting celebrities join as guest stars, today’s news may be one of the most unique. Deadline has learned that Josh Groban will be joining the cast as…

Andy’s brother! From the report:

Will we see a duet performance by the Bernard brothers on The Office this coming season? Crooner Josh Groban has been tapped to play the brother of Ed Helms’ character Andy Bernardon the long-running NBC comedy series. This is the latest member of the Bernard clan to be cast as the network just cast Stephen Collins and Dee Wallace as Andy’s parents. This marks Groban’s first TV acting stint since his star-making turn on Ally McBeal 10 years ago.

Just the other day we learned who would be playing Andy’s parents. Family reunion this season?