We know Jimmy Fallon loves lip syncing to stuff — he made a whole spinoff show about it. But have you ever wondered what it would be like if, instead of lip syncing to pop songs and doing musical numbers, he and a celebrity guest lip synced to commercial jingles, famous quotes, and more using the viral content machine Dubsmash? This video with Wizards of Waverley Place Selena Gomez will answer that question. 

Sources: The Tonight Show Starring Jimmy Fallon