Jay Leno has entered his final month as host of "The Tonight Show," and it's making some people very emotional. Like Leslie Mann, who burst into tears during a Thursday appearance on the show. Once the host pointed out that Mann has known him longer than she has her husband, Judd Apatow, the waterworks started flowing. Mann recalled watching Leno when she was younger: "It's a big deal because I moved here 22 years ago to try to be an actress, and I would always watch your show and I was really lonely and scared because, you know, I was just alone here trying to figure out what the hell to do with myself. And you were always there for me to watch on TV and keep me company, and I kind of always dreamed of coming on the show." Mann, who first appeared on the show in 1996, then poked fun of Leno's penchant for denim, and thus order was restored. Don't stop charming us, Leslie Mann.