Gary Barlow no longer rides the tube because of the "trauma" of being close to one of 7/7 terrorist bombs.
The Take That singer was on an underground train just 30ft away from Edgware Road station when a suicide bomber blew up a train in one of a number of co-ordinated attacks on the London transport network in July 2005 that killed more than 50 people and left over 700 injured and recalled being knocked off his feet by the force of the blast.
He said: "We were on a train that was heading into the Edgware Road tunnel - as the train pulled out the explosion went off.
"When the bomb went off it was just the most unbelievable force and were all kind of on top of one another. It had taken our legs from under us. It was almost like the force of it was in your jaw, it was so powerful."
The 47-year-old singer was stuck on the train for an hour with other emotional passengers, and they had no idea what had happened during their "terrifying" ordeal.
He told The Sun newspaper: "It was really terrifying. Our carriage filled with dust and smoke and everyone was dusty and black. And we got off there really not knowing that there was anything else happening around."
And because of the "trauma" of the day, Gary no longer uses the London Underground as he wouldn't feel comfortable.
He admitted: "I definitely cannot ride the tube now. I would be terrified on there."
Seven people were killed in the Edgware Road attack, including the terrorist who detonated the bomb, Mohammad Sidique Khan.
A further seven victims lost their lives on trains at Aldgate, 26 at King's Cross and 13 on a bus at Tavistock Square. All of the bombers also died.