Messages New Britney Tweet July 29, 2011 By Jordan Miller Britney Tweeted fans this really cute video of her niece, Maddi, singing Up & Down! OMG! Check out my niece Maddie covering Aunt Britney’s Up N Down. Sooooo adorable! http://t.co/F65xT1H -Britney PS – follow BreatheHeavy.com on Twitter! Post navigation Previous PostPrevious Joe Jonas Opening Up A Femme Fatale ShowNext PostNext The Official Femme Fatale Tour Post: Philadelphia, PA Leave a Reply Cancel replyYou must be logged in to post a comment.