Ronnie Wood, the Rolling Stones guitarist and accomplished painter, approached Beverley Knight for a nude portrait.
Knight, famous for her soulful voice, said she agreed to be painted by the famous guitarist until she realised he wanted to paint her naked.
In an interview with the Sunday Mirror, Knight said: "One time he talked about painting me. I was well up for it, then he said he wanted to paint me naked. I was quite embarrassed."
Knight went on to express her embarassment to take her clothes off in front of Ronnie Wood, saying: "Maybe it would be better if he was naked too? Or would it?"
Beverley Knight was 'embarrassed' about being painted naked
The Rolling Stones made their Glastonbury debut on Saturday night when they headlined the Worthy Farm event. Michael Eavis, organiser of Glastonbury, named it the "high spot" of the event, which is in its 43rd year.
Below: awesome shots of the Rolling Stones at Glastonbury