Swan Lake - Bolshoi take:
Swan Lake - Chinese Circus take (amazing balance and dance skills)
And an old favorite, a once close friend loved: Swan Lake - Troc style:
A longer 3 parts:
And just to round it off, a Pole dance version.
And a link to a related title I enjoy
Others 1, 2, 3, 4, 5.
For me - it's the lower back to hip strength and flexibility. Reggaeton might get an unfair wrap - it isn't easy, and there are technical parts to it. The grinding aspectimghed t be great, as it can turn into all out simulated sex, but then we have to remeber close hold salsa and bachata, merengue can have the option to get pretty hot too!
Link to a Washinton Post article about freaking.