The comedian, who joined the show in 2018, tearfully performed his final sketch alongside Ariana Grande and Cher.

Ariana Grande served as host and Cher performed as the musical guest during the Dec. 20 episode of 'Saturday Night Live.' Here, see the best, worst and most oops moments in our roundup of the highs, lows and yikes from the latest episode of 'SNL.

“Saturday Night Live” honored Rob Reiner after the director’s tragic death. During its final episode of the year Saturday, the sketch comedy series flashed a tribute card of Reiner on the screen before the goodnight segment. The tribute featured an old image of the late director and his name.

SNL’s holiday promo goes viral after Cher recreates her “Snap out of it!” moment and playfully slaps host Ariana Grande, as the Wicked star previews the December 20 episode.

Less than a week after the filmmaker and his wife, Michele Reiner, were killed by their son, Nick Reiner, the late-night comedy sketch series included a nod to Rob — who hosted the third episode of SNL back in October 1975. (The show premiered earlier that month on Oct. 11.)

Bowen Yang has officially bid farewell to the “Saturday Night Live” stage.

Saturday Night Live hit a season high as it rang in the holidays. NBC has revealed that the Ariana Grande -hosted episode, which featured Cher as musical guest, averaged 5.4M viewers, making it the most-watched episode of the show’s Season 51.

Cher also rocked $6,400 sweatpants for her first SNL performance in almost 40 years.

Starring on All in the Family as Michael "Meathead" Stivic at the time, Reiner hosted SNL 's third-ever episode on Oct. 25, 1975, following in the footsteps of premiere host George Carlin and episode 2 host Paul Simon. But Reiner was the first host to also appear in sketches with the cast.