Is 'SNL' on Tonight? Watch John Mulaney Host 'Saturday Night Live'

John Mulaney Hosts 'SNL'
John Mulaney delivers his cold open monologue while hosting "Saturday Night Live" on April 14, 2018. NBC will re-air the episode on September 8, 2018. Will Heath/NBC

Longtime Saturday Night Live fans were overjoyed when alumni cast member John Mulaney hosted the show back in April and they'll be thrilled again when the episode re-airs on Saturday.

The appearance marked Mulaney's first time hosting the show following his departure from the cast in 2012. Mulaney joined SNL in 2008. Although he rarely ever appeared on the show—aside from his hilarious stints on the "Weekend Update"—he was an integral part of SNL's writing team for six seasons. During his tenure as a writer for the show, Mulaney won a Primetime Emmy Award for Outstanding Original Music and Lyrics for his musical sketch, "Justin Timberlake Monologue," featuring the famous singer, Seth Meyers and Katreese Barnes.

Despite all the years passed since Mulaney was last on the show, the comedian flexed his SNL muscles with ease when he hosted in April, performing in some of the most popular sketches of the show's 43rd season like "Meet the Parents," featuring cast member Kate McKinnon and guest stars Robert DeNiro and Ben Stiller. His appearance in "Diner Lobster," which included cast members Pete Davidson and Chris Redd, was also a fan favorite. Perhaps nothing more enchanting, though, than Mulaney's seven-minute-long cold open standup monologue.

Jack White served as the episode's guest performer and rocked out two cuts from his 2017 album Beach House Reach including "Over and Over and Over" and "Connected By Love." The musician also appeared in the sketch, "Cut For Time." His SNL appearance was his first in six years. He previously performed as a solo artist on a 2012 episode while he and his wife, Meg White, appeared as The White Stripes in 2002.

NBC's re-airing of Season 43 episodes won't last too much longer. The network announced the premiere date for the 44th season and said SNL will return on September 29. Details regarding the roster of hosts and performers slated to appear during the 2018 fall primetime season have yet to be released.