The Sex Pistols frontman was said to have then flown into a rage, whipping round to face the 23-year-old and snarling, "You never, ever do that to me." Holding back tears, Duff, who scooped the song of the year award with Mercy, fled from the scene, while Lydon, 52, declared to journalists the scene was like a "bad advert for binge drinking".
One of the insiders of the awards, who witnessed the clash at London venue The Brewery, said: "Duff came walking through the double doors into the room where all the photographs of the winners were being taken. At that time Lydon had his back to her. But as she walked past he swung his arm around before he pinned her against the wall."
"She giggled a bit at first, thinking he was having a laugh, but then realised he was serious. He was saying some nasty things to her and her publicist had to step in. Then a bit later, when the artists were being got together for the final big picture, she had to be kept away from some of the shots because she was so up set. She was in tears. It was a nasty thing to see," the insider added.
A spokesman for the chart-topping 5ft 2in blonde singer, who has been dubbed the new Dusty dSpringfield, said last night: "She went over to introduce herself to John Lydon and he pushed her out the way "That's it really. She was upset at the time but she's over it now and is on her way to perform in Los Angeles, so she's absolutely fine now," the spokesman added