Ever find an old pair of jeans in your closet and try them on just to see if they'll fit? Britney Spears did just that and showed off the results on Instagram. The singer, who just moved into a new house, posted a video of herself wearing the low-rise pants and wrote, "Went to the old house yesterday to finish packing and look what I found … these adorable white jeans … no lie I think it's been 20 years since I wore white jeans and they actually fit!"