Judging by the trailer, we think there was some excellent chemistry going on between the good doctor and the Atlanta rhyme-spitter. T.I. is about to make some ears ring when he drops his new mixtape ‘F— da City Up’ on Jan. 1, 2012. Get ready,beats by dr …

Since Eric Saade was the Sound Off champ five times in a row, it’s time for a new batch of artists to duke it out. This time around, PopCrush is having two of today’s biggest rap stars go head-to-head in a battle of the songs. Today, fans can vote for eith …