‘1000-Lb Sisters’ Tammy Slaton Dances in TikTok After Revealing 500-Lb Weight Loss

“1000-Lb Sisters” star Tammy Slaton has every reason to be dancing in celebration … she just revealed she’s lost 500 pounds. The TLC personality took to TikTok on Tuesday, where she happily performed a little jig to Dylan Scott’s anthem “Livin’…