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
Neilson Barnard, Getty Images
loading...

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

Thinkstock
Thinkstock
loading...

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
Getty Images for Celebrity Fight Night
loading...

And that's what happened today in history.