A spokesman for the 22-year-old singer said: "There is no marriage now. They've made a wise decision. They care about each other. They are friends."
Britney married childhood friend Jason Allen Alexander, also 22, in Las Vegas in the early hours of Saturday.
The marriage was reversed on Monday on the grounds that the couple didn't really know anything about each other.
Jason has been speaking out about the wedding.
"It was just crazy. We were just looking at each other and said, 'Let's do something wild. Let's go get married.'"
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The wedding ceremony was reportedly videotaped.
Newspapers have printed pictures of the bride and groom, with Britney in ripped jeans and a white baseball cap.
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