These songs were too big to miss in the 70s, and many never really left the radio. But the stories behind them weren’t always nearly as famous as the records themselves.

Mama Cass Elliot was one of the biggest voices of the 1960s, but she kept one enormous secret from the world. In 1967, the Mamas & the Papas singer gave birth to a daughter named Owen, yet never publicly revealed who the father was. Cass passed away seven years later, taking that secret with her. Then, on Owen's 19th birthday, Michelle Phillips finally uncovered the truth: Her father was a musician named Chuck Day, but the reason he'd remained absent from her life was even more surprising.

Their faces are beautiful and familiar to anyone who watched television and went to the movies in the 90s. Their names, however? That’s a very different story. You might remember their characters, their shows, even their hairstyles. But how many could you actually name without a little help?

After discovering his true passion, Bob Ross made possibly the biggest career change imaginable to gamble on a job in television, and the TV world was all the better for it. Not knowing just how iconic he would become, Bob’s only goal in life was to make the world a better place by teaching people art, something he was lucky enough to do until the end of his days—but that was when the trouble began.