Amarillo singer Tony Christie has claimed he and his band were ambushed by a crowbar-wielding gang trying to get to Britain.
The star said he was asleep alongside his wife on a tour bus heading home through France when the ordeal happened.
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The armed gang then allegedly surrounded the coach's driver Gareth Owen when he stopped for fuel in Dunkirk in the early hours of Saturday.
While he confronted them another man broke into a trailer which was carrying the band's equipment, he said.
The gang disappeared, but when Mr Owen opened the trailer he found the stowaway - who then threatened to kill him with a crowbar before running off.
In the chaos, one of the guitarists fell as he rushed out of the coach and broke his wrist.
Last night, 73-year-old Christie, who scored a number one hit in 2005 with his Comic Relief charity single, said: "I couldn't believe it. They could have got into the coach, what the hell would they have done?
"It's the second time it's happened to the coach driver. The first time he was stabbed by a spike.
"These poor drivers take a hell of a risk.
"I feel really sorry for these people, I know they're desperate but we shouldn't be scared to travel.
"I think I will fly from now on, I don't think I'll go on the road again."