US First Lady Michelle Obama showed off her moves on "The Ellen DeGeneres Show" as she danced to Bruno Mars' "Uptown Funk".Michelle, 51, was appearing on the show to mark the fifth anniversary of her 'Let's Move!' initiative, which aims to encourage people to get out and do some exercise, reported Ace Showbiz. Michelle said host Ellen DeGeneres that as part of the campaign, she and a party of helpers from "So You Think You Can Dance" will be performing a routine to "Uptown Funk" onthe front lawn of the White House during the annual Easter Egg Roll.This year's event, which will take place on the April 6,is part of a tradition that dates back to 1878 when President Rutherford B Hayes opened the White House gardens to local children.