Darren Day, Myleene Klass and Denise Welch are among friends to pay tribute to David Gest after his sudden death on Tuesday.
Denise said that she was "shocked" at news of his passing, adding that the news hadn't "quite sunk in".
Myleene and EastEnders actor Dean Gaffney, who both appeared alongside David on I'm A Celebrity... Get Me Out Of Here! in 2006, paid their respects.
His Celebrity Big Brother Housemates Darren Day, Scotty T and Kristina Rihanoff and Bit On The Side presenter Rylan Clarke also tweeted.
Friends including Hollyoaks star Jamie Lomas and Sheila Ferguson of The Three Degrees, who appeared in David's last tour, also paid tribute.