This is a bit of genius, and a TON of fun to play with. This online soundbox by DinahMoe Labs lets you mix and match differently-styles samples of the tracks from Never Gonna Give You Up by Rick Astley, perhaps the most famous song in internet culture. The variations, and the amount of time you can spend playing with it, are huge (5 tracks x 7 styles x 3 modes = 105 possible variations for any given section of the song). I’m personally a fan of the Blip Vocals mixed with Black Metal Bass, Jesus Harmonies, and TexMex drums. Check it out here!