WATCH: Rob Lowe & Sons Play Best Son ChallengeRob Lowe tricked his sons to spend more time together
WATCH: Ashton Kutcher Joins Fallon for 'Secret Ingredient'Celebrities take turns guessing random secret ingredients hidden in a three-course meal.
Why We Spend Less on Father's Day than Mother's DayAnd watch Jimmy Fallon's #DadQuotes segment
WATCH: Fleetwood Mac, Jimmy Perform with Classroom InstrumentsFleetwood Mac’s Lindsey Buckingham & Christine McVie with "Don't Stop"
Jimmy Fallon's #MyWorstSummerJobThe host asked Twitter followers to tweet him funny, weird, or embarrassing jobs they've had using the hashtag.
Jimmy & Aziz Ansari Dramatically Read Yelp ReviewsOne of my favorite segments!
WATCH: Lip Sync Battle with Jimmy Fallon, Shaq and PitbullThe best part is seeing little Jimmy standing next to Shaq!!!
Jimmy Fallon and Denzel Dramatically Read Christmas CardsHA! Jimmy and Denzel read Christmas cards
VIRAL VIDEO: Joe Buck Channels Johnny Cash on 'The Tonight Show'I think Johnny Cash would be proud...
WATCH: Jay Leno Takes Over Monologue on the Tonight ShowJay Leno returns!
Blake Lively & Ryan Reynolds' daughter calls Jimmy Fallon DadaLets hope for Jimmy's sake that Ryan didn't hear this.
VIDEO: Kristen Wiig Channels "JoJo" From The BacheloretteJimmy Fallon "interviewed" her on "The Tonight Show"