Ariana Grande Gets the Giggles on “SNL” During“ ”Hilarious“ ”Jennifer Coolidge Impression, Plays Bridesmaid Who Can't Sing

The singer also impersonated the likes of Celine Dion, Britney Spears and Miley Cyrus while hosting

Live from Studio 8H — it's Ariana Grande!

The singer, 31, served as host of Saturday Night Live on Oct. 12, where she was joined by Stevie Nicks as the evening's musical guest.

Grande marked her second time as SNL host with a monologue packed with celebrity impressions, as well as hilarious sketches where she impersonated the likes of Jennifer Coolidge and Celine Dion.

Spoofing a Maybelline commercial, the singer played a mirror image of Chloe Fineman's Coolidge, where they applied lip gloss from the brand and discussed what to talk about on an upcoming date.

Though both Fineman, 36, and Grande nailed their impersonations of The White Lotus actress, 63 — complete with voluminous hair, pink outfits and pouts — the singer couldn't help but get the giggles several times during the sketch.

Grande broke character with laughter when she and Fineman discussed what they should say if their date asked them "if we could have any superpower" and after Dana Carvey appeared as a third Coolidge and the three applied their Maybelline lip gloss on one another.

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Elsewhere, Grande promised during her monologue: "I just want to make one thing clear; I am just hosting. I’m not going to make this about me. I’m just going to have fun, take it easy and keep it low key."

However, after being handed a microphone, she quickly launched into perfect impressions of Britney Spears, Miley Cyrus and Gwen Stefani, before Bowen Yang briefly appeared as Wicked's Glinda and a line of dancers joined her on stage.

Grande later played a bridesmaid who couldn't quite hit her notes in a "Bridesmaid Speech" sketch. With Heidi Gardner, Ego Nwodim and Sarah Sherman as fellow bridesmaids, Grande sang off key about the group's bachelorette party for Fineman's bride, to the tune of Sabrina Carpenter's hit "Espresso."

Another standout moment came when Grande played Dion, 56, for the "Celine Dion Sports Promo" sketch, where her version of the Canadian singer filmed a UFC promo that included a spot on performance of Dion's "It's All Coming Back to Me Now."

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Related: Ariana Grande Says 'Time and Therapy' Helped Her 'Re-Embrace' Her Old Music: 'I Used to, Maybe, Hear It and Cry'

Grande's hosting gig on SNL was in promotion of Wicked — the upcoming film adaptation of the Tony-winning Broadway musical.

In it, the "Eternal Sunshine" musician stars as Glinda, opposite Cynthia Erivo, who portrays Elphaba. (The musical’s original Broadway cast included Kristin Chenoweth and Idina Menzel in the roles, respectively.)

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Others who are featured in the project include Yang, Jonathan Bailey, Ethan Slater, Jeff Goldblum, Michelle Yeoh, Peter Dinklage, Marissa Bode and Bronwyn James. It is directed by Jon M. Chu.

Wicked first came from Gregory Maguire’s 1995 novel Wicked: The Life and Times of the Wicked Witch of the West, which was inspired by L. Frank Baum's 1900 novel The Wonderful Wizard of Oz that eventually became the classic 1939 film The Wizard of Oz starring Judy Garland.

SNL is currently in the midst of its landmark season 50, which kicked off its first episode with Jean Smart and Jelly Roll and its second with Nate Bargatze and Coldplay.

This season, returning cast members Marcello Hernandez, Michael Longfellow and Devon Walker were promoted to the main cast after two years each as featured players, while Punkie Johnson, Chloe Troast and Molly Kearney have all stepped away. Ashley Padilla, Emil Wakim and Jane Wickline, meanwhile, have been added to the sketch comedy show's roster.

Fineman, Gardner, Nwodim, Michael Che, Mikey Day, Andrew Dismukes, James Austin Johnson, Colin Jost, Sarah Sherman, Kenan Thompson and Yang round out the remainder of the cast.

Other hosts and musical guests announced so far for SNL's season 50 include Michael Keaton with Billie Eilish and John Mulaney with Chappell Roan.

Saturday Night Live airs at 11:30 p.m. ET on weekends on NBC. Wicked: Part One is in theaters on Nov. 22.

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