Simon Cowell is set to reveal all about his life behind closed doors in the new series of Piers Morgan’s Life Stories.

Cowell will be the first guest in the series and will open up about his family, his business and his love-life in the exclusive interview for ITV1.

The third series of Life Stories will see Piers grilling six celebrities including Cowell, Kym Marsh, Geri Halliwell and Joan Collins about their lives, loves, highs and lows.

Filmed in front of a studio audience, each show is devoted to one guest, looking back over their personal lives and their careers and will include interviews with their friends, families and colleagues.

Piers said: ‘I think this is the best line-up I’ve had so far. It’s hard to think of a stronger possible start than Gordon Brown and Simon Cowell, obviously. One is the country’s most powerful man, and the other’s the Prime Minister. But the rest of the names are all compelling stars too, who have led varied, successful, and occasionally very traumatic lives. This series has more laughs, tears, and genuinely moving moments than even the previous two series. I think this show has now become what I always hoped it would be - the place for the biggest celebrities to come and give the best interview of their lives.’

Previously Piers has secured interviews many household names including prime minister Gordon Brown, Katie Price, Dannii Minogue, Cilla Black, Ulrika Jonsson, Sheila Hancock and Sir Richard Branson. To check out some of the pictures click here.