One pic also featured Britney's name spelled out in big silver balloons, which came courtesy of Miley Cyrus. 'Had the CUTEST surprise party today!!!" Spears wrote. 'A special thank you to Miss @MileyCyrus for sending these awesome balloons!" See the post here.

Britney Spears Music, DVDs, Books and more Britney Spears T-shirts and Posters More Britney Spears News Latest Pop Music News Stories Share this article Related Stories David Guetta Remixes will.i.am and Britney Spears's 'Mind Your Business' will.i.am And Britney Spears Score No. 1 With 'Mind Your Business' Elton John and Britney Spears Recruit Olympic Gold Medalist Nathan Chen For Video