"Parks And Recreation" is bringing back DJ Roomba. Tom's fan-favorite creation, a Roomba with an iPod attached, will return in an upcoming Season 5 episode. Rob Lowe tweeted the news.
— Rob Lowe (@RobLowe) October 1, 2012
DJ Roomba was last seen haunting Jerry in the halls of Pawnee City Hall in the Season 2 episode "Sweetums." The inanimate DJ is just the latest big guest star to come to Pawnee. Lucy Lawless will appear in multiple episodes as Diane, a love interest for Ron Swanson.