Why does it specifically have to be rap? I've encountered players who blast all kinds of music genres-- J-pop, metal, dubstep, techno, and even music from movies and TV shows.
Free Step Dodge
Awesmic
Chapstick
One time I joined a lobby and someone was playing One-Winged Angel from FFVII on their mic
Princeofhalcyon
Its just always been what ive encountered is all. Never hear anything else. Figured it was like the specific choice for trolling since its usually vulgar or has a lot of profanity lol
Camel with 2 thumbs
i'd rather hear some bumpin' rap beats over a mic as opposed to what i normally hear :/