Did you know Barack Obama can be connected through business and personal relationships to the late rapper Tupac Shakur?

Kidada Jones, the daughter of music bigwig Quincy Jones, was dating Tupac before he was shot and killed in September, 1996.

When Forbes published its list of the year’s top-earning dead celebrities, we set ourselves a challenge.

If everyone is separated by six degrees (or less), shouldn’t it be possible to link every name on the list in a single map?

The ranking, topped by Elvis Presley, includes 13 people - musicians, actors, a cartoonist, a children’s author, an artist and a Nobel Prize winner. Their birth years span nearly a century, from 1879 to 1971.