Katherine Heigl, Marjorie Johnson and Johnny Mathis are guests in the episode which airs Thursday, December 20th on NBC. The Tonight Show with Jay Leno airs weeknights at 11:35/10:35c.
Katherine Heigl Launches The Just One Line Of Pet Products, December 14th, 2012
Katherine Joined the Voice Cast of Animated Movie, November 16th, 2012
Kheigl.com: Portrait Of A Friend, November 10th, 2012