By KIMBERLEY DADDS

It was a party to celebrate 25 years of DKNY, so the star studded guest list was of course littered with clothing items from the collection.

But none quite so much as Rita Ora, who wore a whole wardrobe of brandished outfits as she took to the stage then partied the night away.

The singer first of all arrived looking demure in a black and white printed knee-length frock with sparkly pointy heels.

Scroll down for video

Displaying her support: Rita Ora is dressed head to toe in DKNY as she performs on stage at DKNY’s 256th birthday celebration during New York Fashion Week on Monday night.

Covered: The 22-year-old wore a variety of bold black and white outfits with the DKNY letters and logo VERY clearly on show

Rocking out: Rita performs onstage at the #DKNY25 Birthday Bash to a rapt audience

She stayed warm wearing a large white blazer, which appeared plain from the front but revealed a number 25 in a matching printed pattern on the back.

But as the night went on she went more bold and brash in her outfit choices.

The 22-year-old jumped on stage to entertain the crowds by belting out some of her hits, first of all in a pair of DKNY trousers.

The pants featured thick and bold lettering in black and white, complemented by a matching baggy sweatshirt with the same striking print in a PVC-like material.

Mingling: Rita did the rounds at the party still wearing one of her bold DKNY numbers

In the theme! Even off stage she wore one of the DKNY ensembles as she posed next to the 25th birthday cake

Interesting ensemble: Rita Ora went for a baseball-inspired look in a white jacket and graphic print top when she first arrived to the party

VIPs: Emmy Rossum, Joan Smalls, Rita Ora and Karlie Kloss pose together at the DKNY 25 Birthday Bash

She of course matched her shoes to the monochrome theme as she gave it her all into the microphone.

Rita later removed the sweatshirt to reveal yet another brandished DKNY top underneath.

The white sleeveless top again had the iconic DKNY print letters across it. 

Partners in crime: Emmy revealed that it was Rita who persuaded her to try out twerking on stage with the rapper Iggy Azalea

Standing out: Rita wore a pair of DKNY trousers and a brandished sweatshirt to kick off her performance in front of the star studded crowd

Entertainer: The crowd members certainly seemed to be enjoying themselves at the party

Duet: She was later joined on stage by Iggy Azalea, who also took to the mic

Big draw: Actress Emmy Rossum even got on stage to show off her moves with the singers

Ora was joined on stage by Iggy Azalea and actress Emmy Rossum, who both danced next to her as she continued singing.

But it wasn’t long before she put on an even more stand out ensemble.

At one point Rita put on a floorlength coat with the same black and white DKNY print, with the hood pulled up over her head.

Cause for celebration: Donna Karen and Rita Ora pose by the birthday cake at the event

Dig in! Karlie Kloss, Iggy Azalea, Joan Smalls, Rita Ora and Donna Karan tuck into a custom made DKNY cake

All together now! Karlie Kloss, Iggy Azalea, Emmy Rossum, Joan Smalls, designer Donna Karen, Rita Ora and Melanie Fiona all gathered around the cake

And it wasn’t only on stage that she kept up with the theme to mark the milestone in Donna Karan’s label.

Rita also wore the coat with the hood up as she posed for pictures next to the special DKNY cake, which was made in the shape of a New York taxi.

She also posed next to the woman herself, Donna Karan, who wore her own DKNY sweatshirt for the occasion.

Her model moment: Rita stunned a day earlier when she strutted her stuff on the DKNY catwalk