The video for Jessie J's new single 'It's My Party' has rolled out online, and eagle-eyed fans of the singer-songwriter will have spotted her pal, the British model Jourdan Dunn, doing her thing.

The new video dropped early on Thursday (August 8, 2013) and see's Jessie - with her newly shaved blonde hair - dancing around, err, her party.

As well as Dunn, the party-going cast is made of many of Jessie's close friends, including the songwriter Daley.

"It was really fun. It was amazing to have the guests that I've got in there," Jessie revealed to Capital FM, "Obviously my best mates Claire and Holly were in the video. Daley pops up in there.

"It was an amazing day, I had Jourdan Dunn in the video, who's a supermodel," she explained. "[It was Jourdan's] first music video, so that was really fun for me to experience that with her. Sitting next to a supermodel! It was fun, it's like a straight up party video."

Watch Jessie J's video for It's My Party:

The new single follows 'Wild' as the second single from Jessie J's currently untitled new album, set for release on September 23, 2013. One of the former Voice judge's new tracks appears on the soundtrack for new fantasy movie The Mortal Instruments: City of Bones.

Watch the video for Jessie J's Wild (featuring Big Sean & Dizzee Rascal):

As of 2012, Jessie has sold over 11 million singles and 2.5 million albums worldwide. She left the panel of the BBC's music talent show The Voice to concentrate on recording, promoting and touring her new record.

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Jessie J's Has Released The Video For New Single 'It's My Party'