New T.I. & Xtina!

Check out a preview of the rapper's collaboration with Aguilera, Castle Walls, above.
Yet another song that's following the Love The Way You Lie formula!

Source: http://perezhilton.com/2010-11-24-ti-and-christina-aguilera-castle-walls-preview

B.o.B Bruno Mars Lil Wayne Young Jeezy