If Shaggy wasn't called Shaggy, his whole career might not have happened. Bonky would have been too rude, Rumpy not suggestive enough. But Shaggy conjures up deep-pile carpets and sex on cheap sofas in dodgy bed and breakfasts. This is the naughty yet somehow innocent Carry On vision of sexuality that Shaggy (born Orville Burrell, not Mr Lover Lover) has tapped into.

Indeed, there is so much sexual energy around that the merchandising stall might just as well sell mattresses and condoms and let the crowd get on with it. Everybody is gyrating, although not quite as adventurously as the Shag monster. Shaggy is an expert in groin-thrusting, bottom-wiggling, lip-curling and - a particular favourite - vibrating his entire body in the manner of a sex toy.

His female dancers appear to have been selected for their ability to wiggle their bottoms in a manner that may well be illegal. Behind Shaggy, a backdrop shows a teasing Jamaican seascape with palm trees. This man is selling a musical foreign holiday with sex on the beach.

Nobody knows how preposterously wonderful all this is more than Shaggy, a master of irony and the seductively raised eyebrow. "Everybody say, 'Oh, yeah', say, 'Cor-nee!'" he urges, pricelessly. Backed by a sublime reggae band, Orville the Pelvis and his homies gyrate through lover's rock, salsa, calypso and other glorious rogering riddims, including a newly suggestive version of Mungo Jerry's In the Summertime.

Given the amount of "laydeez" sacrificed to his honourable member in his tunes, you could suspect misogyny - but Shaggy worships women. A pretty Manchester lass called Sophie is hauled onstage to become the blushing star of Angel.

Elsewhere, one of Shaggy's dancers thrusts her butt dismissively into his groin - more firmly than in rehearsals, judging by his expression. However, nothing diminishes Shaggy's ardour. He places the mic in his trousers, and invites every "angel" in the audience back to his place, where he will "fog up the windows", the devil.

His oodles of hits - from Oh Carolina to It Wasn't Me - sound better in person, partly because the one person enjoying himself more than the crowd is Shaggy. He never stops smiling, thanks God for his gifts and breaks the party atmosphere to talk movingly about September 11.

He's a charmer but genuine - and, in case you're wondering, keeps the whole bonkathon up for near on two hours.

· Shaggy plays Wembley Arena, London (020 8795 9509), tonight, then tours to Glasgow, Newcastle and Birmingham.