This May 9, 2013 photo shows a fitness class designed by the athletic trainer for the Rockettes, Elaine Winslow, and taught to passengers aboard the Norwegian Breakaway cruise ship. The

 

              This May 9, 2013 photo shows a fitness class designed by the athletic trainer for the Rockettes, Elaine Winslow, and taught to passengers aboard the Norwegian Breakaway cruise ship. The
This May 9, 2013 photo shows a fitness class designed by the athletic trainer for the Rockettes, Elaine Winslow, and taught to passengers aboard the Norwegian Breakaway cruise ship. The Rockettes, famed for their kick line at the Radio City Music Spectacular, are the godmothers for the ship. (AP Photo/Beth J. Harpaz)