If Madonna's a CrossFitter:
(1) I wouldn't be surprised; but
(2) I'd be afraid CrossFit will have jumped the shark -- just like Kabbalah did when Britney Spears tied a red string around her wrist, and just like P90X did when Tony Horton popped up on Kirstie Alley's reality show.
(Source: Monsters & Critics via Social Workout)