King of Rock n Roll Elvis Presley may have conquered the world with his music but he proved to be a disappointment in bed, according to the 70's icon Peggy Lipton.

The former Mod Squad beauty, whose list of ex-boyfriends include Sir Paul McCartney and Keith Moon, was disappointed when her encounter with the Presley turned into an anti-climax.

"He took me away on his plane and brought me up to Tahoe, I believe. We tried to go to bed right away," Lipton was quoted by Femalefirst, as saying.

"There was nothing to talk about with Elvis. He was either doing his karate things or eating. There was really no dialogue there so we went to bed right away and it just didn't happen for him. We tried a few more times and nothing ever happened, so I just let it go," she added.