Fully tattooed MMA fighter acts hard during the weigh-ins and then gets knocked out in 20 seconds.

Cat hugs its dog friend after not seeing him for 10 days.

Britney Spears - Oops!...I Did It Again without the music.

Tom Hanks' epic lip-sync performance in Carly Rae Jepsen's "I Really Like You" music video.

This little dog just loves watching rodeo bull riding on tv.

Kids in the crowd challenges Roger Federer and drops a beautiful lob over his head for the point.