Ashton Kutcher is not the first celebrity name to come to mind when thinking about selflessness, but he should be up there on that list.
The That '70s Show star is known for his good looks and humor, but did you know he has a twin brother? Ashton is so close with his twin, Michael, that he'd be willing to die for him - and he almost did.
The 40-year-old actor may seem like he's living a perfect life with his wife, Mila Kunis, and two children, but he's actually no stranger to adversity.
When he was 23 years old, he was dating a student named Ashley Ellerin who was murdered on one of their date nights. She was stabbed dozens of times by Michael Gargiulo, a serial killer known as Chiller Killer. Ashton had to testify in court, which turned out to be a crucial piece of evidence for the conviction of the killer.
A decade before that tragic incident, Ashton's brother, who was born with cerebral palsy, was told he had only a few hours to live after he suffered from a cardiac arrest at the age of 13.
Doctors told the worried family that they had two choices: They could either say goodbye to their young boy or pump his heart, which would only extend his life for up to a day.
Both options sounded grim. Ashton knew there was only one thing he could do to save his best friend's life...