Subscribe | UPI Odd Newsletter Subscribe OLSO, Norway, Oct. 3 (UPI) -- British pop superstar Katie Melua has set a world record with a gas rig gig -- nearly 1,000 feet below sea level in the North Sea. Norway's NRK TV filmed the concert celebrating the 10th anniversary of gas production at the Statoil Troll A rig. Advertisement "This was definitely the most surreal gig I have ever done," Melua, 22, told the BBC. "Giving a concert to the workers there was something really extraordinary and an occasion that I will remember all my life." Britain's No. 1 selling female artist had to do more than rehearse for this concert -- she had to undergo survival training as well as pass a rigorous physical exam. The concert was confirmed to be the deepest underwater by Guinness World Records.