Ashley was previously a regular part of the show between 2013 and 2016, and although she hasn't been individually named by ITV among the guests, the Pussycat Dolls have been officially confirmed for the first episode back.
The group, who recently reunited, will be performing "some of their biggest hits" as part of the End of the Show Show.
Meanwhile, Camila Cabello will be the premiere episode's guest announcer.
There will also be a new comedy miniseries, as Ant and Dec – still members of The Honoured – must help to save the Earth from an intergalactic security threat. Emily Atack, Amanda Holden, Amber Gill, Simon Cowell, Richard Ayoade, Paddy McGuinness, and Hugh Bonneville will make appearances.
The show also shared details about a new segment called Don't Feed the Pandas, where Ant and Dec dress up in realistic prosthetic panda costumes in an attempt to fool people at London Zoo.
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Viewers can also expect segments such as Undercover and I'm a Celebrity... Get Out of Me Ear to return, as well as a Place on the Plane feature which gives members of the public the chance to fly out abroad for the show's 2020 series finale.
One change this series is the fact that Scarlett Moffatt will unfortunately not be returning in a regular role.
Ant & Dec's Saturday Night Takeaway will return on February 22 on ITV.
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