Pippa's living it up in New York

Pippa Middleton's New York trip was supposed to be for business - to attend meetings ahead of the release of her party-planning book - but she's also been having lots of fun!

The trip coincides with her 29th birthday and it's thought she'll celebrate with a front row seat at New York Fashion Week, which kicks off tonight. She what else the royal sister has been up to in the Big Apple...