No, no! Relax! It's just a joke some fans made about the two super stars of pop! Someone has made the following video and the sure is that he is so talented 'cause the video is really a nice job! What is the video about? It's the song "Secret Combination" by the Greek super star Kalomoira performed by the princess of pop, Britney Spears!!!
It's worth to watch it! ;)

ENJOY!!