Here are top 10 shocking celebrity deaths of 2012. Here are 10 Shocking Celebrity Deaths of 2012:Number 10 – Neil Armstrong was deemed a hero after he became the first man to walk on the moon. He passed away in August 2012 at age 82 following complications from a heart surgery.Number 9 – Legendary singer Whitney Houston died at the young age of 48 in February 2012. She had drowned in a tub filled with roughly 12 inches of hot water the night before the Grammy Awards.Number 8 – Famous American television and radio personality, Dick Clark passed away in April. He died at the age of 82 from what was said to be a massive heart attack.Number 7 – Popular, Latina singer, Jenni Rivera died in a plane crash in December. The mother-of-five was only 43-years-old.Number 6 – The son of Sylvester Stallone, 36-year-old Sage Stallone died from natural causes at the age of 36. He had passed away on July 13 from an underlying heart condition.Number 5 – Well know actor and television producer, Andy Griffith passed away in July from an unspecified illness. He was 86-years-old.Number 4 – Johnny Lewis had been an actor on “Sons of Anarchy” and also an ex-boyfriend of Katy Perry. The 28-year-old died in September after he fell from a 15 foot terrace. He had reportedly strangled his elderly landlady prior to falling.Number 3 - Bee Gees member, Robin Gibbs died at the age of 62. He succumbed to a long battle with cancer in May of 2012.Number 2 – Actor, Michael Clarke Duncan was highly regarded for his role in ‘The Green Mile’. He died in September 2012, from respiratory failure following a heart attack. He was 54 years of age.Number 1 – American singer and disco queen, Donna Summer died of cancer in May of 2012. She lived to be 63 years of age.