Todays celebrated famous birthday of the day is
Olivia Newton-John

This British-born Australian singer and actress achieved international fame when her song "If Not for You," written by Bob Dylan, was released in 1971. In 1974, she represented the UK at the Eurovision Song Contest and had a #1 hit single with "I Honestly Love You." After moving to the US, she broke into film, co-starring with John Travolta in
Grease, which was the biggest box office hit of 1978 and remains popular today. Who was Newton-John's Nobel Prize-winning grandfather?