Greta Pontarelli, 67, defies gravity. Several years ago, Pontarelli was researching ways to strengthen her body and stumbled upon pole dancing. That’s when she got to work. The senior citizen proudly shows off her washboard abs while dressed in a crop top and bikini briefs. Pontarelli works out on the pole for two hours every other day. She's now competing internationally and holds the title of world champion in the over-40 division.