Gwyneth Paltrow had a smile on her face this morning when she touched down at London's Heathrow Airport. She's back in England to see her kids, Apple and Moses, after a quick stay in NYC. Gwyneth dazzled in a backless Stella McCartney dress on Monday night at the Costume Institute Gala, and she kept things rowdy by joining her pals Jay-Z and Beyoncé Knowles at the official afterparty held inside Crown — at one point, Gwyneth was overheard saying to Marc Anthony, "Let's make some noise and get drunk!" Gwyneth is home in the UK while many of her pals stayed behind in America. She'll have a chance to reunite with Beyoncé soon, though, since the B just signed on to appear during Scotland's T in the Park Festival in early July. Beyoncé's also on the lineup for Glastonbury, where Gwyneth's husband Chris Martin will perform with Coldplay.