 The staff had the idea to close the episode with a choir of children singing the Monk 's theme " It 's a Jungle Out There " . Additionally , it would feature a wide shot of the entire cast and crew who had been involved in the six seasons of the series , as well as network and studio executives , former guest stars and directors , and the theme 's singer Randy Newman . The centerpiece would be Howard along with her son Sabu . However , due to scheduling issues , they could not bring them all together . 
