Double Duty on “Saturday Night Live”” – as host and musical guest – is a double-edged sword. People gifted in both areas, like Donald Glover and Ariana Grande in recent years, usually succeed, appearing in almost every sketch of the 90-minute show as well as the elaborately rendered musical performances. Low performers tend to give a halting, self-referential introductory monologue, then appear in a small number of sketches and leave the rest to the professionals.

But Charliwho has been an accomplished musician since her early teens but has limited acting experience, succeeded in her dual role on Saturday night, appearing in almost every sketch, channeling Adele – expertly — Victoria Beckham and her friend and tour companion Troye Sivan (in a mock “Wicked” audition, with Bowen Yang reprising his Charli impersonation); playing a psychopathic suburban housewife with Andy Samberg in a Lonely Island Digital Shortt, the female sidekick in a parody of a toxic Trump-bro podcast, Shrek’s love interest, and even intentionally sang poorly in a sketch based on Chappell Roan’s “Hot to Go.” She even had the real Julia – Julia Fox – perform her first musical performance, “360,” while Yang introduced her second song, a heavily auto-tuned “Sympathy Is a Knife.”

In her opening monologue, she did the obligatory positioning who I am for those who don’t know, nodding to her LGBTQ fans within the first minute: “For those of you who recognize me, you know maybe me from my album ‘Brat’, but don’t worry if you don’t… there’s nothing wrong with being straight,” laughing. Yet the “Brat” phenomenon, which could have been a one-note joke for the rest of the series (as it was in a weak teaser video with Chloe Fineman), was barely brought up.

Not all of the sketches made it to air — hey, it’s “SNL” — but a high percentage of them did, making for one of the best shows of the year. Fans barely got a bathroom break — she even starred in a sketch that didn’t air (but was posted online) called “Mean Cute” that flexed her acting muscles from another manner.

Late last month, Charli said Variety that she received encouragement for the role from her friend Ariana Grande, who did double duty herself earlier this season. Grande appears on Charli’s “Brat” remix album; the two also share a manager in Brandon Creed. She will also be honored as VarietyHitmaker of the Year in Los Angeles next month.

“It’s such a big thing, isn’t it, so I’m nervous,” she admitted. “But I was with Ariana last night – she obviously did it and killed it, so I was getting advice from her. She just told me, ‘You’re going to be amazing, relax, it’ is so much fun.’

When asked if she had ever done comedy before, Charli rather sheepishly admitted: “No, I haven’t,” she laughed. “I just kind of go with the flow. We’ll see what happens.

It’s a promising introduction to the singer’s multiple upcoming film roles. She will be the featured guest on Benito Skinnerthe next comedy series of “Overcompensation.” It was previously announced that she would produce the original music for the series.

In addition to “Overcompensating,” Charli XCX’s upcoming credits include three films: Gregg Araki’s thriller “I Want Your Sex” with Olivia Wilde and Cooper Hoffman; Daniel Goldhaber’s remake of 1978’s “Faces of Death” starring Barbie Ferreira; and the adaptation of Julia Jackman’s graphic novel, “100 Nights of Hero,” starring Emma Corrin and Maika Monroe.

If “going with the flow” on “SNL” is any indication, her upcoming film roles should open up a solid second career for the singer.