Little Mix are among the celebrities who are wanted to climb Mount Kilimanjaro for Comic Relief.
BBC bosses are reportedly planning a repeat of their 2009 trip up the iconic mountain.
A decade ago, stars including Girls Aloud's Cheryl and Kimberley Walsh, radio DJ Fearne Cotton, Boyzone's Ronan Keating ascended up Africa's highest peak for charity.
They were joined by TV presenter Ben Shepard, Take That's Gary Barlow, radio DJ Chris Moyles, actress and singer Denise Van Outen plus Britain's Got talent judge Alesha Dixon.
Ten years on and a second trip is said to be in the works for 2019's Comic Relief special.
According to The Sun newspaper, names approached include the members of girl group Little Mix, James Corden, Jonathan Ross and Robbie Williams.
A source told the tabloid: “The last trip did brilliant numbers, both in terms of viewers and money raised. They are now planning another one-off 60-minute special, and are hoping to raise a shedload of money again.
“The plan is to air it around Red Nose Day in March.”
The original special in 2009 was watched by over 8 million viewers on BBC One and raised more than £3 million for Comic Relief.
Meanwhile, The Celebrity Apprentice is also set for a return for a new series in 2019, also in support of Comic Relief.
Those rumoured for the line up include new X Factor judge Ayda Williams, the wife of Robbie Williams, plus Britain's Got Talent judge Amanda Holden and singer turned TV presenter Rylan Clark-Neal.
Also tipped to tkae part are Boris Johnson’s sister and recent Celebrity Big Brother housemate Rachel Johnson, comedian Omid Djalili, TV presenter Richard Arnold and stand up Russell Kane.
More names linked to the show are designer Kelly Hoppen, EastEnders star Tameka Empson and one-time England manager football Sam Allardyce.
Comic Relief's Red Nose Day 2019 will take place on Friday, 15 March.