Girl Talk is the coolest thing I've discovered in music in a very, very long time. He's been out there for a while, and I've heard the name, but I thought it was "house music" or something for ravers. I was so, so wrong. Girl Talk is what is right about music, he's the delivery on the promise of "One Nation Under a Groove." Seriously, this guy makes me giddy. Look at this chart which tries to track the "dna" of the album "All Day" which I think is his best.
I've already linked some of his stuff, so I'm not going to oversaturate you. But if you haven't heard it yet, find it on my page or somewhere else, if you like any of the songs they've listed in that chart, I believe you'll like a lot of what you hear.