What a week!

First Blair Waldorf—I mean Leighton Meester—was announced as the <a href="http://beautyeditor.ca/2010/04/13/leighton-meester-is-the-new-face-hair-of-herbal-essences/">new global ambassador for Herbal Essences</a>.

Now <a href="http://www.nicolebyopi.com/" target="_blank">Nicole by OPI</a>—<a href="http://www.opi.com/" target="_blank">OPI</a>'s mass market line of nail lacquers and treatments—is introducing a limited edition collection inspired by <a href="http://www.cwtv.com/shows/gossip-girl" target="_blank"><em>Gossip Girl</em></a>.