Una Healy and Lottie Moss 'sign up for Netflix's Bear Hunt'

Una Healy and Lottie Moss are said to have signed up for Netflix show 'Bear Hunt'.

The Saturdays singer, 42, and the 26-year-old model - Kate Moss' half-sister - are expected to join the likes of Spice Girls singer Mel B, 'Strictly Come Dancing' head judge Shirley Ballas and former pro rugby player Danny Cipriani on the brand-new programme.

In the upcoming show, which will be hosted by Holly Willoughby, survival expert Bear Grylls will put the stars through their paces as he challenges them to survive in the Costa Rican jungle, before chasing them in a cat-and-mouse style "Bear Hunt".

A source told The Sun newspaper's Bizarre column: "Netflix have chucked a serious amount of money at 'Bear Hunt' and they have worked hard to get celebrities you might not expect to find in the Costa Rican jungle.

"Una has signed up to try and show a different side to her.

"People know her for The Saturdays, and for her short-lived fling with David Haye.

"Taking part in 'Bear Hunt' will show a side of her that the public haven’t seen before."

Former 'Celebs Go Dating' star Lottie is said to be prepared to "put everything into succeeding" on the show.

The source added: "Lottie is very much signed on for the same reason.

"She has become a celebrity in her own right and has a really interesting backstory.

"Lottie is a tough cookie and while she is very glamorous, she loves to get her hands dirty and will put everything into succeeding on Bear Hunt."

It comes after Mel B is said to have signed a six-figure deal to appear on 'Bear Hunt'.

Earlier this week, a source told the publication: "(Mel) flew to Costa Rica at the weekend to join the ambitious reality series."