Each day around 10:20 am and 2:20 pm we step into a time machine and take a look back. Who was born? What was going on in the world? What happened in music?

Today on May 20th...

In 1972-Rapper Busta Rhymes was born. He turns 47 years old today.

Neilson Barnard, Getty Images

In 2013-Yahoo! bought Tumblr for $1.1 BILLION!

Thinkstock

In 1979-I wonder, if this will make the upcoming film, "Rocketman", today in music history Elton John played in Leningrad and in doing so, was the first Western solo rock star to tour the Soviet Union.

Getty Images for Celebrity Fight Night

And that's what happened today in history.