Happy Birthday Olivia Newton-John!

Olivia Newton-John, we wish you a happy 68th birthday!

Born in Cambridge, UK, Olivia's family emigrated to Australia when she was just 6 years old. As she grew up, she sang with various groups in and out of school, and eventually recorded her first single, "Till You Say You'll Be Mine," in 1966.

Her first solo album came in 1971, and, of course, we know how her singing success would seriously grow a few years later with "I Honestly Love You."

In 1978 Olivia starred in the screen adaptation of "Grease," for which the character of Sandy was changed to become Australian to to fit the actress.

Just a few years later, this video, shot to promote her biggest song of her career, debuted on MTV. It may have been a bit cheesy, but the song spent 10 weeks atop the Hot 100 singles chart.