Billie Eilish made her first-ever Saturday Night Live hosting gig a family affair by getting her parents and older brother Finneas in on the action.

Along with her hosting duties, the 19-year-old Grammy Award-winner delivered two show-stopping performances of her latest hits Happier Than Ever and Male Fantasy.

Eilish’s mother Maggie and father Patrick proudly introduced their daughter to the Studio 8H stage while Finneas lent his guitar skills to the occasion.

Gang’s all here: Billie Eilish made her first-ever Saturday Night Live hosting gig a family affair by getting her parents and older brother Finneas in on the action

Maggie rocked a black sweatshirt with her daughter’s face plastered on the front of it with the phrase ‘Billie’s Mom’ written beneath it.

For her live rendition of Happier Than Ever, Billie crooned into a portable microphone while lounging in a faux living room setting.

She was seated on a white leather lounger and concealed her curvy figure beneath a cozy, oversized getup.

As the song progressed, Eilish’s quaint setup was opened up for the studio audience to see.

Proud parents: Eilish’s mother Maggie and father Patrick proudly introduced their daughter to the Studio 8H stage

On strings: Finneas lent his guitar skills to the occasion

As the walls around her widened, the singer’s band – including Finneas – was revealed and the stage lights began to strobe.

There were also countless twinkle lights that lit up.

She rocked out at the song’s high-energy bridge, whipping her hair around and belting into the microphone.

Singing: Along with her hosting duties, the 19-year-old Grammy Award-winner delivered two show-stopping performances of her latest hits Happier Than Ever and Male Fantasy

Cozy: For her live rendition of Happier Than Ever, Billie crooned into a portable microphone while lounging in a faux living room setting

Immersive: She was seated on a white leather lounger

Billie showed off her angelic falsetto while performing her second song of the night Male Fantasy.

She sang on the floor beside Finneas, who strummed on an acoustic guitar.

She changed out of her head-to-toe sweats and, instead, threw on an oversized charcoal sweatshirt and black biker shorts.

Opening up: As the song progressed, Eilish’s quaint setup was opened up for the studio audience to see

All-black: She concealed her curvy figure beneath a cozy, oversized getup

Billie was also without shoes, which added to the intimacy of the performance.

Both tracks are featured on her second studio album Happier Than Ever, which was released in July.

The singer first served as SNL musical guest back in 2019.

The official SNL Instagram account was promoting Billie’s highly-anticipated double duty gig all week.

Gang’s all here: As the walls around her widened, the singer’s band – including Finneas – was revealed and the stage lights began to strobe

Bling: Billie accessorized with a silver chain and hoop earrings

Illuminate: There were also countless twinkle lights that lit up

On Tuesday, a caption underneath a video montage of the singer-songwriter read: ‘Billie’s on double duty!!! ​​THIS SATURDAY.’

The 15-second clip showed various looks from the creative’s green-haired era, soundtracked by an upbeat instrumental.

A voiceover was incorporated to exclaim, ‘Host and musical guest Billie Eilish!

On Wednesday SNL shared an image of the pop star in a super size grey hoodie as she held an electronic device in her hand and sat at a table in rehearsal.

Intimate: Billie showed off her angelic falsetto while performing her second song of the night Male Fantasy

Goosebumps: She sang on the floor beside Finneas, who strummed on an acoustic guitar

Comfy: She changed out of her head-to-toe sweats and, instead, threw on an oversized charcoal sweatshirt and black biker shorts

There was a large black reusable bottle in front of her as she clutched the tablet with long, nude manicured nails.

The entertainer had on a black face mask, but appeared to be smiling as her eyes were slightly squinted.

On Thursday, the page posted a behind-the-scenes clip of Billie describing how she brought one of her previous SNL performance ideas to life.

It was captioned, ‘Rewatch the “bad guy” #CreatingSNL before @billieeilish takes on double duty this weekend!

Highly-anticipated: The official SNL Instagram account was promoting Billie’s highly-anticipated double duty gig all week; Billie and Kate McKinnon pictured

Practicing: Billie pictured rehearsing ahead of the show