Her impeccable red carpet appearances continue to wow fans and audiences.
In 2003, Principal became a member of the Society of Cosmetic Chemists.
At the time, it was the highest-rated aired television episode in American history.
She received two Golden Globe nominations.
The relationship ended in March 1982, due to Gibb's escalating drug addiction problems.
Over the course of her nine-year run on Dallas, Principal found worldwide fame.