Popsugar Fitness Celebrity Fitness Celebrities Working Out Feb. 21, 2014 Burn 60 and Tracy Anderson! The Classes Celebs Are Loving February 21, 2014 by Lizzie Fuhr View On One Page Photo 1 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Naomi Watts After an early morning Burn 60 class, Naomi Watts was all smiles. Previous Next Start Slideshow Celebrity Fitness