Liv Tyler and Naomi Watts got together on the grounds of NYC's St. Luke's in the Fields Church for the unveiling of the Stella McCartney 2012 Spring/Resort collection. Stella's early Summer garden parties are an annual tradition that have in the past brought out her other famous friends like Kate Hudson and Gwyneth Paltrow. It's been a busy few weeks for Naomi, who kicked off her campaign with Pantene last week and has been enjoying the warm weather with her family. Liv is likewise occupied with a variety of projects, including the promotion of her upcoming movie The Ledge. Naomi and Liv teamed up last week as well, when they joined other stylish stars at the CFDA Awards.