Olivia Rodrigo put on a leggy display and channelled her inner Betty Boop

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Olivia Rodrigo channels Betty Boop in a little red dress, black wig and lipstick as she stepped out for Kendall Jenner’s lavish Halloween party

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Olivia Rodrigo put on a leggy show on Saturday, channeling her inner Betty Boop as she stepped outside for Kendall Jenner’s lavish Halloween party.

The singer, 19, looked nothing short of sensational in a bold red mini dress with a bandeau neckline, a bow at the front and a frilly hem.

The brunette beauty also chose to show off her long-toned pins and wore a sassy red garter for the occasion.

Betty who?: Singer Olivia Rodrigo put on a leggy show on Saturday, channeling her inner Betty Boop as she stepped outside for Kendall Jenner's lavish Halloween party

Betty who?: Singer Olivia Rodrigo put on a leggy show on Saturday, channeling her inner Betty Boop as she stepped outside for Kendall Jenner’s lavish Halloween party

She also chose to increase her height with a pair of chunky heels and donned a pair of sheer black stockings.

The beauty sported a curly black wig, a glamorous smokey eye makeup look and a red lip just like pin-up cartoon Betty Boop.

The singer also opted for some matching accessories for the event, while donning a mini red handbag and some classic hoop earrings.

Stunning: And Olivia, 19, looked nothing short of sensational in a bold red mini dress featuring a bandeau neckline, a bow at the front and a frilly hem

Stunning: And Olivia, 19, looked nothing short of sensational in a bold red mini dress featuring a bandeau neckline, a bow at the front and a frilly hem

Stunning: And Olivia, 19, looked nothing short of sensational in a bold red mini dress featuring a bandeau neckline, a bow at the front and a frilly hem

In another photo, Olivia appeared to be excited as she entered the star-studded bash with a wide grin on her face.

The star-studded bash comes after Olivia was recently spotted at USC during a class at the Thornton School of Music.

And just a week after performing with the legendary Billy Joel at Madison Square Garden in New York City, Olivia hit the books in LA.

The pop star was spotted on Wednesday during a class at the University of Southern California’s Thornton School of Music, with a fan sharing a photo of her in class, which read: ‘No way I’m in class with Olivia bruh .’

Another image that appeared on Rodrigo’s fan pages shows her status at the school as an “undergraduate visitor” with an “unclassified” major.

According to USCa ‘visiting student’ can enroll and complete, ‘individual professional or personal development courses without enrollment in a degree program’.

And a visiting student is considered an “unawarded student” who “pays tuition advance and receives normal instructions, assessments and formal results.”

In other words, Rodrigo is not currently fully studying at USC, she is only taking classes to broaden her musical production horizons.

Class: The star-studded bass comes after Olivia was recently spotted at USC taking a class at the Thornton School of Music to broaden her musical production horizons

Class: The star-studded bass comes after Olivia was recently spotted at USC taking a class at the Thornton School of Music to broaden her musical production horizons

Class: The star-studded bass comes after Olivia was recently spotted at USC taking a class at the Thornton School of Music to broaden her musical production horizons