VIDEO: Sneak Peek - Joseph Gordon-Levitt Talks DON JON on JAY LENO

Tonight, TONIGHT SHOW guest Joseph Gordon-Levitt tells Jay about the inspiration behind his new film DON JON and what it was like working with Scarlett Johansson. Click below for a sneak peek!

Later, Jay Mohr shares his experience of taking his young son for his first haircut and also discusses why he no longer likes to attend rock concerts. Mika featuring Ariana Grande performs.

"The Tonight Show with Jay Leno" features a nightly monologue (the longest in late night), news-making guests, and ongoing comedy segments, including "Headlines," "Jaywalking" and "Battle of Jaywalking All-Stars." The result is a unique and humorous look at the daily happenings in the news and in pop culture.

The program is also a proven barometer of political clout. In 2009, the show made history by Being the first late-night show to host a sitting president when Jay Leno welcomed President Barack Obama as a guest.

"The Tonight Show with Jay Leno" is from Big Dog Productions in association with Universal Television. Debbie Vickers is the executive producer.

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