VIRAL VIDEO: Justin Timberlake & Jimmy Fallon Sing "Ironic" at Camp WinnipesaukeeDid you notice the tribute to "Meatballs?"
Justin Timberlake Joins Jimmy Fallon at Camp in 'Tonight Show' SkitIn a room surrounded by childhood games of the '90s like Guess Who? and Battleship, the two friends decide to sing a song they heard on the radio earlier that day -- "Ironic" by Alanis Morissette.
WATCH: Jimmy Fallon, Kevin Hart Visit 'Scariest Haunted House' in NYC"I'm going to say this," Hart tells the audience before entering the haunted house, "jump out on me if you want to - you're gonna get a boot to the neck."
Blake Shelton Teaches Jimmy How to Milk a CowIt's time for Jimmy to learn a few things from Blake!
Ariana Grande and Jimmy Fallon Do Not Know Each Other at AllOn The Tonight Show, Jimmy Fallon and Ariana Grande cut through the BS artifice to reveal how much they have to learn about each other's interests, preferences and lives. Welcome to the "Best Friends Challenge."
VIDEO: Jimmy Fallon Steals The Show as Ryan Lochte at VMA'sRemember when the VMA's on MTV used to be must-see TV?
Blake Lively & Ryan Reynolds' daughter calls Jimmy Fallon DadaLets hope for Jimmy's sake that Ryan didn't hear this.
Madonna Performs Borderline on The Tonight ShowIn case you missed it, President Obama was on Jimmy Fallon last night and the musical guest was Madonna!
WATCH: 'Kid Standup' With Jimmy Fallon and Seth RogenWhere does the President keep his Armies?....In his Sleevies....
Trish's Trash: Meghan Trainor Wipes Out on FallonJimmy rushes to the stage and lays down with her! LOL
VIDEO: Jimmy Fallon, Paul Rudd Recreate Absurd Styx Music VideoWatch their remake above and the original here!
VIDEO: Jimmy Fallon Lip Sync Conversation with Ariana GrandeCheck out Ariana Grande and Jimmy Fallon having a conversation in her dressing room while lip-syncing to some popular songs.