Fresh off his very short run as an Uber driver, Jay Leno made a surprise appearance during last night’s Tonight Show when Jimmy Fallon “pulled a hammy†during the monologue and needed someone with Tonight Show experience to temporarily cover for him. Leno cracked some jokes about Obama, the presidential candidates, and the economy before turning it back to Fallon, proving that just because he left The Tonight Show doesn’t mean he’s not willing to temporarily replace Jimmy Fallon at any opportunity.