(AGI) Washington, March 17 - There was absolutely no need toprove that Michelle Obama is the coolest First Lady to haveever lived in the White House, but now a video posted onYouTube has also confirmed her talent as a dancer. In order topromote the fifth year of her 'Let's Move' campaign, the51-year old presidential spouse, a convinced advocate ofphysical fitness and healthy nutrition, showed off her perfectphysical form with a live performance on the Ellen DeGeneres TVshow. During the very popular show, Michelle promoted herlatest "Gimme 5" initiative, asking American top-notchcelebrities like Beyonce', but also ordinary U.S. citizens, toreveal the healthy lifestyles they lead by giving fivepractical examples. Michelle Obama announced that during theWhite House's Easter celebrations, with the traditional EasterEgg Roll, she will present the "Gimme5Dance", which wasconceived in order to keep people fit. She then challengedDeGeneres to a dance-off, which Ellen happily accepted, as shejoked: "Listen, I'm in better shape than you!". "Don't even tryit," the First Lady replied. The pair then performed anenergetic routine in perfect sync to the sounds of Mark Ronsonand Bruno Mars' hit "Uptown Funk", which became an immediatecult video on YouTube. (AGI). .