Credit: Getty Images/ Carlo Allegri

Josh Groban talked with Valentine In The Morning back in April of 2014 about his recurring role on The Crazy Ones, where the late Robin Williams was starring in.

Groban had nothing but admiration for Robin Williams and talked about how fun it was to work with the comedian.

MYFM artist Kelly Clarkson appeared in The Crazy Ones as well. Clarkson also tweeted devastation about Williams' passing.