Cirque de Soleil's Viva Elvis

Um... hmmm... when did Cirque de Soleil become a dance/tumbling show? The last time I checked, Cirque de Soliel had some crazy aerielists, acrobats and inflatable oversized snails-like things. No? Am I losing it? Don't get me wrong, I really enjoyed the performance, it was just not exactly what I was expecting.