Like odd duets?
How about Nelly Furtado and Keith Urban?
Read about it here.
Or -- ready ... -- Snoop Dog and Willie Nelson?
Read about that here.
We can't make this stuff up. And Lord knows we can't make up the idea of Snoop hanging with Willie in Amsterdam. I mean, think of the possibilities: Willie, Snoop, the Red Light District, legalized ... Oh, well, you get the idea.