Olivia Rodrigo hosts a ‘prom party’ to celebrate release of her concert film Sour Prom

Olivia Rodrigo premiered her highly-anticipated concert film Sour Prom on Thursday night, featuring numerous hits of her debut album Sour.

And to celebrate the release, the 18-year-old singer hosted her very own ‘prom party last nighttttt!’ with several of her closest pals.

Rodrigo got all decked out for the occasion in a vintage Betsey Johnson pink floral slip dress with vibrant lace detailing on the bodice.

Big premiere: Olivia Rodrigo premiered her highly-anticipated concert film Sour Prom on Thursday night, performing numerous hits of her debut album Sour

‘prom party last nighttttt! SOUR prom concert film is out now!!!!’ captioned Olivia, who shared the snaps from her Thursday night get together on Instagram.

Her eye-catching number stopped just below her knees, allowing her to showcase the glittery platform heels on her feet.

She wore her lengthy brunette hair in a unique variation of braids and pigtails secured with multi-colored rubber bands.

The Good 4 U hitmaker had several strands of pearls around her neck and rocked a maroon manicure. 

Party time! And to celebrate the release, the 18-year-old singer hosted her very own 'prom party last nighttttt!' with several of her closest pals

Party time! And to celebrate the release, the 18-year-old singer hosted her very own ‘prom party last nighttttt!’ with several of her closest pals

All dressed up: Rodrigo got all decked out for the occasion in a vintage Betsey Johnson pink floral slip dress with vibrant lace detailing on the bodice

All dressed up: Rodrigo got all decked out for the occasion in a vintage Betsey Johnson pink floral slip dress with vibrant lace detailing on the bodice

In traditional prom fashion, Olivia sported a hot pink floral corsage on her right wrist.

One snap saw Rodrigo flashing a toothy grin as she cozied up to an adorable Chihuahua rocking a black suit and bow tie.

With all of her friends by her side and rocking their own colorful evening wear looks, Olivia posed for prom-style photos on a roof top parking lot.

The Deja Vu singer and her crew gathered together for another snap aimed at capturing the matching corsages on all of the female attendees’ wrists. 

Out now! 'prom party last nighttttt! SOUR prom concert film is out now!!!!' captioned Olivia, who shared the snaps from her Thursday night get together on Instagram

Out now! ‘prom party last nighttttt! SOUR prom concert film is out now!!!!’ captioned Olivia, who shared the snaps from her Thursday night get together on Instagram

Creative: She wore her lengthy brunette hair in a unique variation of braids and pigtails secured with multi-colored rubber bands

Creative: She wore her lengthy brunette hair in a unique variation of braids and pigtails secured with multi-colored rubber bands

One of the attendees happened to be Iris Apatow, the 18-year-old daughter of director Judd Apatow and his actress wife Leslie Mann.

Sour Prom premiered on YouTube on Thursday evening, following weeks of promotion on Olivia’s Instagram and other social media pages.

The film featured live performances of several hit tracks off Rodrigo’s debut album Sour, which was released in April.

Olivia, who never got to experience her actual prom, recreated the melancholy nostalgia of the high school dance, from the moody lighting to her fallen glamour girl aesthetic.

Matchy matchy: The Deja Vu singer and her crew gathered together for another snap aimed at capturing the matching corsages on all of the female attendees' wrists

Matchy matchy: The Deja Vu singer and her crew gathered together for another snap aimed at capturing the matching corsages on all of the female attendees’ wrists

A now viral promo image from Sour Prom saw the actress dressed as a prom queen with mascara running down her face and a large bouquet of flowers in her hands.

After seeing the promo image on social media, Hole’s Courtney Love took to social media to accuse Rodrigo of copying the artwork for the band’s 1994 album Live Through This. 

On June 24, the 56-year-old shared a photo of Rodrigo’s ‘Sour Prom’ shoot and wrote ‘spot the difference! #twinning.’

Sour Prom: Sour Prom premiered on YouTube on Thursday evening, following weeks of promotion on Olivia's Instagram and other social media pages

Sour Prom: Sour Prom premiered on YouTube on Thursday evening, following weeks of promotion on Olivia’s Instagram and other social media pages

Performance-packed: The film featured live performances of several hit tracks off Rodrigo's debut album Sour, which was released in April

Performance-packed: The film featured live performances of several hit tracks off Rodrigo’s debut album Sour, which was released in April

After a Facebook fan inquired if Courtney was ‘mad or nah,’ about the alleged manic prom queen rip on Olivia’s end, she responded: ‘she didn’t ask. So bit of both. I dig manners.’

Courtney tagged Olivia in all three social media posts which seemed to be coming from a place of hurt over the fact that Olivia ‘didn’t ask’ her for permission. 

After Olivia got wind of the comparison she seemed to try and soften the situation. ‘Love u and live through this sooooo much.’

Nostalgia: Olivia, who never got to experience her actual prom, recreated the melancholy nostalgia of the high school dance, from the moody lighting to Olivia's fallen glamour girl aesthetic

Nostalgia: Olivia, who never got to experience her actual prom, recreated the melancholy nostalgia of the high school dance, from the moody lighting to Olivia’s fallen glamour girl aesthetic

Courtney then seemed to feel vindicated by the acknowledgement but in her response back she boldly pushed for a formal apology in written form, as well as flowers from the singer.

‘@oliviarodrigo Olivia – you’re welcome. My favorite florist is in Notting Hill, London! Dm me for deets! I look forward to reading your note!’

This has not been the first time Rodrigo has been accused of taking inspiration from other artists — as many do in the music world.

Her song ‘Good 4 You’ has been compared by way of blatantly similar chords to Paramore’s ‘Misery Business.’

Look familiar? A now viral promo image from Sour Prom saw the actress dressed as a prom queen with mascara running down her face and a large bouquet of flowers in her hands

Look familiar? A now viral promo image from Sour Prom saw the actress dressed as a prom queen with mascara running down her face and a large bouquet of flowers in her hands

Accusations: After seeing the promo image on social media, Hole's Courtney Love took to social media to accuse Rodrigo of copying the artwork for the band's 1994 album Live Through This (pictured)

Accusations: After seeing the promo image on social media, Hole’s Courtney Love took to social media to accuse Rodrigo of copying the artwork for the band’s 1994 album Live Through This (pictured)

Most recently, Rodrigo’s track Brutal came under fire for having a guitar riff similar to one in Elvis Costello’s Pump It Up.  

Replying to a Twitter user who said Brutal is ‘pretty much a direct lift from Elvis Costello’, the 66-year-old music star came to Rodrigo’s defense, writing: ‘This is fine by me… it’s how rock and roll works.

‘You take the broken pieces of another thrill and make a brand new toy. That’s what I did,’ he wrote, admitting that Pump It Up was influenced by Bob Dylan’s 1965 song Subterranean Homesick Blues, which was itself inspired by Chuck Berry’s 1956 record Too Much Monkey Business. 

Yikes: On June 24, the 56-year-old shared a photo of Rodrigo's 'Sour Prom' shoot and wrote 'spot the difference! #twinning'

Yikes: On June 24, the 56-year-old shared a photo of Rodrigo’s ‘Sour Prom’ shoot and wrote ‘spot the difference! #twinning’

Read more at DailyMail.co.uk