Very little makes me happier than hearing a hip-hop acapella being dropped over a massive track in a club. Along these lines:

How Clap Low Trap - Joe x Ludacris
http://soundcloud.com/soundpellegrino/how-clap-low-trap-orgasmic-bootleg

Waka x Darq E Freaker

http://soundcloud.com/sinden/draq-e-freaker-waka-x

So yeah, more of these please.