Munchkin the Shih Tzu might won't have any guilt about overindulging on Thanksgiving Day—she's been burning off those calories!
This 8-pound-dog donned her teddy bear costume and hit the treadmill, melting hearts (and fat) with her oh-so-adorable YouTube video.
Munchkin, much to the delight of the Internet, debuted her cute costume on Halloween. And while that viral video was a success as well, there's just something about her commitment to fitness in clip No. 2 that makes this latest video, posted Monday, all the more endearing.