London: Pop star Britney Spears made her Los Angeles concert unforgettable for a male fan by giving him a lap dance on stage.

The 29-year-old singer was performing 'Leather and Lace' at the Staples Centre as part of her 26-date 'Femme Fatale' tour when she performed the provocative dance for the male fan, reported a website.

Spears, whose first marriage to childhood friend Jason Alexander was annulled just 55 hours after they said "I do" in Las Vegas in 2004, is now said to be planning a "low-key" ceremony with Jason Trawick in Hawaii once she has completed her world tour.

Trawick reportedly presented Spears with a flower shaped diamond ring with an insider confirming, "She's on cloud nine".