research

As you can see from these magazine covers Red was an important colour that was used in Most Hip-Hop magazines, Black and White were also colours that were used a lot but Red  Was the colour that I found in most of the magazines I researched.  

The magazines choose to use big name Rappers in thier front cover like T.I and Nas. this will attract more attention as they are well established Rappers and have big fan bases around the world.