"Run This Town" (CD single) (by Jay-Z, Kanye West, Rihanna, Rap)

The second track off of Jay Z's soon-to-be-released CD titled The Blueprint 3, RUN THIS TOWN features guest vocals from two other artists -- Rihanna and Kanye West -- whose mega-star status is on a par with his own. To that end, the three spend this song asserting their dominance over everyone and everything, posing the question, "Who's gonna run this town tonight?" and then answering it themselves: "We are, yeah I said it, we are / You can call me Caesar / Please follow the leader." This single also marks Rihanna's first release since her recent troubles with boyfriend and fellow singer Chris Brown. 

This song reels you in right off the bat, with strong intro lines from Rihanna that she proceeds to repeat throughout the song, as well as a dually infectious and ominous guitar hook that's a good fit for the track's competitive message. Both Jay Z and Kanye demonstrate why they're masters of their trade, each delivering their rhymes with timing and flow that make the song stick in your mind long after it's over.