Wow. Trae Tha Truth brought out an all-star squad of MCs version 2.0 for his song I’m On. It features Big K.R.I.T., Kendrick Lamar, J. Cole, B.o.B., Tyga, Bun B, Gudda Gudda and Jadakiss–all on a flip of Mark Morrison’s classic Return of the Mack track. Check it out.

Here are the original I’m On (featuring Lupe Fiasco, Big Boi, Wale and Wiz Khalifa) and Mark Morrison’s Return of the Mack.