Josh Groban to Guest Star on NBC's The Office
The site is also reporting that stage veterans Stephen Collins and Dee Wallace will also appear this season playing Helms' character's parents.
Groban appeared in the London concert version of the musical Chess alongside Idina Menzel, Adam Pascal, and Kerry Ellis. His many CDs include Illuminations, Noel, and Awake. He guest starred on the first season of FOX's Glee.