Britney Spears and husband Kevin Federline were said to be romantically back together when they were spotted on a short Miami Beach vacation.

A source told Us Weekly that Federline was no longer sleeping in the basement of the celebrity couple's $7 million Malibu, Calif., mansion where he'd been exiled for several days.

In Spears' tell-all interview June 15 with Matt Lauer on Dateline NBC, the pop star spoke affectionately about her husband and their 21-month marriage. The couple took off on a quick trip to Miami with their 10-month-old son Sean, Us Weekly reported.

The relationship between Spears and Federline has been off and on, but Us Weekly said for now it is still on.