The 22-year-old superstar tied the knot with Jason Allen Alexander, 22, on Saturday, according to celebrity news web site People.com.

But the marriage was a joke that went to far, and the unhappy couple are trying to get it annulled, which would mean it officially doesn't count.

Britney released her fourth album, In the Zone, in November.

Britney's management have not confirmed whether the rumours are true.

But one magazine says it has a copy of an application for a marriage licence for Spears and Allen.