Former GENERATION X frontman Billy Idol has started a vigorous exercise regime to get himself in shape for performing on tour, because he no longer has enough sex to keep his energy levels sky high.

The WHITE WEDDING singer, 49, admits that the days of fuelling his lively gigs by spending more time in the bedroom are long gone.

Idol says, "It's a two hour show and I work constantly hard throughout, so that adrenalin drives me.

"In the old days I could get all my energy from sex but now, like everybody else, I have to exercise.

"People come to hear my voice though, so I have to keep that as fit as my body."