Lucky hasn't been trained, coerced, or even bribed -- she's simply got happy feet.
Lucky, who's a rescue at the Phnom Tamao Rescue Center in Cambodia, is a particularly expressive creature. Orphaned at 8 months old, she would likely have been killed had she not been rescued.
Apparently she's a pretty happy elephant, and according to the Wildlife Alliance, Lucky has even developed an interest in painting in addition to dancing!
From the Wildlife Alliance's post:
Lucky walks with an almost constant smile on her face. She is so relaxed, in fact, that her eyes are almost closed when she's around us. Of course, a very long time ago, she experienced the trauma of losing her mother, but she now is a typically happy elephant, raised with so much love, walking and swimming everyday in the same places and enjoying the constant closeness of her familiar elephant ("ellie") friends. She is charming and could win anyone over through her affectionate ways -- her mouth opens so wide that when she smiles, you can see her tongue!
Check out her dance in this video from the Wildlife Alliance: