Mayim Bialik (Amy, Big Bang Theory) has an actual neuroscience PhD in real life

Actor Jim Parsons (Big Bang Theory) has never seen Star Trek

It is estimated that every hour, a future famous person is born.

Paris Hilton has a whole closet that's completely filled with sweatsuits.

Kelly Osbourne had her wisdom teeth removed and dipped in gold – she kept one and gave the other to Ozzy as a gift.

The ‘Hollywood’ sign was put up in 1923 and originally spelt out the word ‘Hollywoodland’.

The word ‘never’ is said a total of 73 times in the Justin Bieber song “Never Say Never”.

Ancient Roman gladiators did product endorsements, much like athletes today.

Walt Disney was afraid of mice.

When the Spice Girls first met Nelson Mandela in 1997, he said "This is one of the greatest moments of my life."

When she joined 'The X-Factor,' Britney Spears became the highest-paid judge on a singing competition series in television history.

Rihanna has officially sold more digital singles than any other artist ever.

Taylor Swift wrote a 350-page novel when she was 12 years old.

Celebrity Worship Syndrome is an obsessive-addictive disorder where a person becomes overly interested with a celebrity's personal life.

Will Smith would memorize the entire script and would mumble lines while they were being said in Season 1 of "The Fresh Prince of Bel-Air."

One Direction holds the world record for being the first to debut at No. 1 with their first three albums!

Zayn didn’t own a passport before he was in One Direction.

Harry from one direction eats Twix bars at the same time so that the other doesn’t get ‘lonely’.

Hugh Jackman owns a coffee company that donates 100% of its profits to charity.

True - see here

The police were called on Sacha Baron Cohen 92 times during the filming of 'Borat'.