Which one of these is not like the others?

Warren Buffett, Bill Gates and, ... Ludacris?

This is an Associated Press picture from Friday night’s basketball exhibition between the United States and Canada in Las Vegas.

The three fellows taking in the game together?

Warren Buffett, Bill Gates and rapper Ludacris.

Uh, is this normal for these three to hang out? No. 1 and No. 2, I can see … but Ludacris?

Just found it interesting …