The Pussycat Dolls are making a comeback.

Band members Nicole Scherzinger, Ashley Roberts, Kimberly Wyatt, Jessica Sutta and Carmit Bachar all reunite for this weekend's final of 'The X Factor: Celebrity.'

It was Nicole's fellow judge on the show, Louis Walsh, who initially broke the news.

Louis appeared on 'Lorraine' earlier this week with X Factor hopeful Megan McKenna, where he revealed all to the host.

He said, "You know who's on? Pussycat Dolls are the guest. There's an exclusive for you. They're back together, yeah."

Scherzinger confirmed the news on Twitter.

Kimberly Wyatt posted the same photo and caption, as did Ashley Roberts and Jessica Sutta.

Carmit Bachar confirmed to ET that's she's returning too but there's been no comment from Melody Thornton.

Rumors of the reunion had been circulating for months.

The ladies are going on tour too, titled 'Unfinished Business'. It will kick off in April 2020 in the U.K., with tickets going on sale this Sunday, December 1st.

Competing in this weekend's finale are V5, Megan McKenna, Max & Harvey, and Jenny Ryan.

It airs live on Virgin Media One this Saturday at 7.10pm.