Las Vegas, Jan. 4 (Reuters): Wearing a baseball cap and on the arm of a hotel bellman, pop star Britney Spears married a childhood friend here yesterday, according to published reports.

A marriage license was filed in Clark County, Nevada, on January 3 for Jason Allen Alexander and Britney Jean Spears, both 22. Signed by both, the document says they are both residents of Kentwood, Louisiana, who were born in Mississippi and have never been married before.

But how tightly the knot was tied was not immediately clear.

People magazine and the Las Vegas Review Journal newspaper said in their online editions that Spears married Alexander at the Little White Wedding Chapel on the Las Vegas strip early yesterday. Both reports said she was walked down the aisle by a Palms Hotel bellman and People said she wore jeans and a baseball cap.

But today, People.com quoted a source close to Spears as saying the wedding was a joke that went too far and the singer was already planning an annulment.

“I don’t know what’s going through her mind,” the website quoted “someone close to Spears” as saying.