David Gest appeared "frail" when he was spotted in public days before his death, according to reports
The reality TV star, music producer, and former husband of actress and singer Liza Minnelli, died suddenly yesterday in a London hotel aged 62.
Scotland Yard said police were called to the Four Seasons hotel in East London earlier on Tuesday following reports "of an unexplained death of a man in his 60s".
"London Ambulance Service were called to the scene. Life was pronounced extinct at the hotel," continued the statement.
"A post-mortem will be held in due course. Next of kin are in the process of being informed."
The singer had been reported to have suffered from ill health in recent months and had to leave Celebrity Big Brother on health grounds.
One onlooker, Matt Hare, who spotted the Gest recently on the London Underground was quoted as saying that, "David looked frail and quite pale and was kind of just staring up at the Tube map."
Fellow Celebrity Big Brother contestant Darren Day, Myleene Klass and former Coronation Street actress Denise Welch are among a wealth of celebrities who have paid tribute to Gest after his sudden death.
Welch said that she was “shocked” at news of his passing, adding that the news hadn’t “quite sunk in”.
So shocked and sad to hear that our friend David Gest has died. Hasn't quite sunk in xxx
— Denise Welch (@RealDeniseWelch) April 12, 2016
Musician and presenter Myleene Klass and EastEnders actor Dean Gaffney, who both appeared alongside David on I’m A Celebrity… Get Me Out Of Here! in 2006, also paid their respects.
David Guest, a wonderfully kind, extremely generous and special man. #RIP
— Myleene Klass (@KlassMyleene) April 12, 2016
Never have I lost a best friend before and this pain hurts harder than anything I've ever experienced. RIP David Gest, I love you brother.X
— Dean Gaffney (@deangaffney1) April 12, 2016
Gest became a household name following his show-stealing appearance on I'm a Celebrity... Get Me Out of Here! in 2006. A close friend of the late Michael Jackson, he produced the documentaries Michael Jackson: 30th Anniversary Celebration in 2001 and Michael Jackson: The Life of an Icon in 2011.
He was a contestant on the most recent series of Channel 5's Celebrity Big Brother but left the show early on health grounds.
He had been due to tour the UK in July in a musical show called David Gest Is Not Dead, But Alive with Soul. The title was inspired by an incident in the Celebrity Big Brother house when American reality star Tiffany Pollard mistakenly believed that it was Gest who had died rather than David Bowie.

David Gest appeared on Celebrity Big Brother earlier this year
Who ever got to meet David would know what a legend he was with his timeless funny stories💔gutted ❤️u grandad D💔💔 pic.twitter.com/wodWF32070
— Stephanie Davis (@Stephdavis77) April 12, 2016
He married Liza Minnelli in March 2002 with Michael Jackson as best man and Elizabeth Taylor as maid of honour. Gest later sued Minnelli, claiming the stage and screen star had assaulted him. Minnelli also took legal action, claiming Gest had stolen at least $2m she earned while performing in shows he produced.
Their battle ended in 2007 when their lawyers said they had settled their differences and had agreed to a no-fault divorce.

David Gest and Liza Minnelli in 2002
Paying tribute, Gest's friend Imad Handi said in a statement: "David was truly larger than life. He was not just a huge talent and a dear friend but a showbiz icon.
"I know he will be missed by millions of fans around the world, and particularly in Britain, who came to love his charm and blistering one-liners."
"If I may steal the words of one eminent critic, David was a natural star and a genuine celebrity. I will miss him desperately," he concluded.
A wealth of stars and celebrities pay their respects to David Gest:
Absolutely beside myself David Guest I 💗 you so much so so sad to hear this will never forget you X the phone calls I will miss so much RIP
— Gemma Collins (@missgemcollins) April 12, 2016
OMG just found out my great friend @DavidGest2016 has sadly past away. My thoughts are with your family at this time. RIP David x @kymseygr1
— Christopher Maloney (@ChrisMaloney77) April 12, 2016
My heart is broken. Grandad has gone. Last to get photo with him. We made plans and im gutted I won't see you again💔 pic.twitter.com/EuVT4Oadh2
— Stephanie Davis (@Stephdavis77) April 12, 2016
RIP David Gest...
— John Partridge (@mustbejp) April 12, 2016
I'm devastated to hear the sad news my dear friend David Gest has died . He was a loyal dear friend to me and he will be so sadly missed
— Lizzie Cundy (@lizziecundy) April 12, 2016
David Gest was a talented producer ,witty man and someone I was proud to call my friend. Shocked to hear of his death.
— Les Dennis (@LesDennis) April 12, 2016
Sad news to report that our friend David Gest has died. More at the @itvnews site. https://t.co/sf5ocvklN8 pic.twitter.com/n5grABTws4
— Loose Women (@loosewomen) April 12, 2016
So shocked and sad to hear that our friend David Gest has died. Hasn't quite sunk in xxx
— Denise Welch (@RealDeniseWelch) April 12, 2016
David Guest, a wonderfully kind, extremely generous and special man. #RIP
— Myleene Klass (@KlassMyleene) April 12, 2016
Never have I lost a best friend before and this pain hurts harder than anything I've ever experienced. RIP David Gest, I love you brother.X
— Dean Gaffney (@deangaffney1) April 12, 2016
I'm devastated to hear about my dear friend David Gest. I love and miss you mate. Heaven will be a brighter place x pic.twitter.com/A3WP70hC4v
— Darren Day (@DarrenDOfficial) April 12, 2016
I can't put it words how truly sad I'm to hear that the wonderful @DavidGest2016 past away. One of the best people I got to know in my life
— Kristina Rihanoff (@KRihanoff) April 12, 2016
So tragic to hear....David guest you will always be in my thoughts & my heart it was a pleasure knowing you! Rest in peace mate 💙😔
— Scotty T (@ScottGShore) April 12, 2016
So sad to hear the news about David Gest . Really sad news. Xx #RipDavid
— Rylan Clark-Neal (@Rylan) April 12, 2016
It is with great sadness, after having made many calls, it is true. My dear friend David Gest has died! Must go! S,X pic.twitter.com/ESuG2O9jbm
— Sheila D. Ferguson (@therealsdf) April 12, 2016
So sad to hear the news about David Gest, I was lucky enough to get to know you, a wonderful fun and generous human being, RIP my friend X
— jamie lomas (@jamielomas1) April 12, 2016
Such an incredible man David guest so sad we never got to say good bye 💔
— jorgie porter (@misJORGIEPORTER) April 12, 2016
Oh so sad to hear about David Gest, a truly talented and genuinely funny man! Rest in peace! X
— Beverley Callard (@Beverleycallard) April 12, 2016