Josh Groban, Stephan Collins to Guest Star on THE OFFICE Tonight

NBC's "The Office" will be throwing a GArden Party on October 13th, as Josh Groban, Stephan Collins and Dee Wallace guest star in the "GArden Party" episode.  The show will air October 13 at 9:00 pm.

In the episode, Andy (Ed Helms) decides to throw a gArden Party to impress Robert California (James Spader). Dwight (Rainn Wilson) researches how to host a gArden Party and thinks he has made it a very classy event. Meanwhile, Andy's parents (Stephen Collins and Dee Wallace) and brother (guest star Josh Groban) attend but make him feel self-conscious.

John Krasinski, Jenna Fischer, B.J. Novak, Leslie David Baker, Phyllis Smith, Angela Kinsey, Brian Baumgartner, Oscar Nunez, Kate Flannery, Paul Lieberstein, Mindy Kaling, Creed Bratton, Craig Robinson, Ellie Kemper and Zach Woods also star.

To view a clip from the upcoming episode, click here