Washington D.C., U.S.A. - Britney Spears concert in the big W was a blast! A lot of fans flocked to see the strut of the Pop princess as she unleashes her popular songs. But a very funny Britney was heard after greeting her Washington fans a jolly "Merry Christmas", that's a super advance greeting don't you think?

On a bright side, at least we know the microphone was live and she wasn’t lip syncing. Here’s the Britney Spears Merry Christmas video. The magic moment is at the 50 second mark.