September 16, 2012 Photos | MTV Buzzworthy Blog: How Our Favorite Pop Stars Celebrated New Year's Edit Delete Tags Autopost MTV Buzzworthy Blog: How Our Favorite Pop Stars Celebrated New Year's Related Artists Drake Lady Gaga Rihanna Lmfao Taylor Swift Gretha Cavazzoni Gwen Stefani Halle Berry Hayden Panettiere Haylie Duff Heidi Klum Heidi Montag Hilarie Burton Hilary Duff Hilary Swank