Ozzy Osbourne's son, who wed his fiancee Lisa Stelly in Hawaii on Sunday (07Oct12), was on the beach with a friend when they spotted a woman in distress off the coast of the paradise islands.
Jack's new wife reveals they swam out to drag the lady to shore, and she's now recovering in hospital.
In a series of posts on her Twitter.com page on Tuesday (09Oct12), Stelly writes, "Really proud of Jack and his friend Tyler who saved a woman on the beach yesterday who'd had a heart attack and drown (sic). They resuscitated her until the ambulance came. We just found out she's in a stable condition! Awesome!"