This viral Levi's ad is going to incite the biggest debate since Mentos and Diet Coke. In terms of viral clips go, this seems to have the "Did you see that?" factor and is guaranteed to inspire curiosity and conversation. So, if you fill your jeans with helium, can you actually lift off the ground? It seems this is within the realm of possibilities, but I'm sure it would come down to some law of physics my community college mind never learned. Decide for yourself.