John Mulaney celebrated his fifth time hosting NBC's Saturday Night Live on Saturday, Feb. 26, by opening the show with a witty monologue that about the first time he truly bonded with his 12-week-old son, Malcolm.

The moment happened shortly after Mulaney's girlfriend, actress Olivia Munn, had given birth to their son last November.

"We're in the delivery room. My girlfriend had just given birth to him, and he's crying a little," Mulaney said, setting the scene. "They put him on the warmer under this big bright light. Light is just shining in his eyes."

Munn shared some behind-the-scenes snaps of her 3-month-old son Malcolm Hiệp visiting his dad on set. Mulaney was in a dressing room holding the baby boy as they both wore dress suits.

"Malcolm visited SNL Thursday afternoon. Here he is looking like your uncle being carried out of a wedding because he went too hard." she wrote.

In his monologue, the comedian, who began sharing his experience with addiction on stage last year, also poked fun at the intervention that his close friends—including Late Night host Seth Meyers—held for him in December 2020 that inspired Mulaney to check into rehab the same month.

"When I walked into my intervention, I knew right away that it was an intervention," he explained. "Do you know how bad of a drug problem you have to have if when you open a door and see people gathered, your first thought is, 'This is probably an intervention about my drug problem?'"

Later in the episode, the comedian joined SNL's coveted Five-Timers Club and was initiated in a hilarious sketch that featured a host of comedy greats, including Conan O'Brien, Paul Rudd, Tina Fey, Steve Martin, and more.

In the end, the Anchorman actor had to surrender his Five-Timers Club velvet jacket to Mulaney, adding, "Oh well, it was fun while it lasted!"