"Siegfried & Roy's Secret Garden and Dolphin Habitat is proud to celebrate the 1st birthday of Sgt. Pepper! The birthday boy was born at the Dolphin Habitat on Friday, June 8, 2007. Come celebrate and join us in wishing him a happy birthday. He can be seen daily playing and splashing with our trainers as he grows."

http://www.mirage.com/attractions/attractions_dolphins.aspx