Last night on Live, Jimmy Kimmel got back at Julie Bowen for her ongoing taunts pointed at his walking "workout." Walking is "good for you, but it's not really a sport." (Agreed.) And so Jimmy challenged the routine runner to a race around the theater and made it even juicier with a bet: the winner tweets from the loser's account. The aforementioned spoiler granted, but the underdog here seriously whooped Julie's butt. "I liked chunky Jimmy!" Plus: J.Lo weighed in on the Beyoncé lip sync scandal at the Presidential inauguration — "When you're in certain stadiums ... they do pre-record things because you're going to have that terrible slap-back." Oh, right, the slap-back. And she continued, "All performers do [lip-sync] at some point." Also, Emmy Rossum encountered a mountain lion by her pool during her meal of spaghetti and meatballs; and Dana Carvey serenaded Jay Leno with a song about the tightened late-night rivalry. But it's all good for Leno because "His motto is 'Tell joke. (and in a squeaky Leno voice) You gotta get a check, you gotta get a check.'" Ooh, burn. Watch our compilation to see what you missed.