Rapping about astrobiology

Going through my YouTube subscriptions today I stumbled on a video that's pretty interesting: a guy rapping about astrobiology. I am not an aficionado of rap -- I don't think ABBA ever did it, did they? -- but I kinda like this one despite the sometimes awkward lyrics (his accent is cool, too). His use of the sounds of moving across the radio dial is clever, and how many rap songs do you know that reference Frank Drake and Carl Sagan?