In his online Q&A session #askluda, Ludacris admitted that he would like to make a record with Eminem and this project is on his to-do list.

Choosing between all rappers, dead or alive, as possible collaborators, Luda only mentioned Biggie, 2Pac and Marshall:

Who would I like to collaborate with, dead or alive? That’s a lot. Obviously, I collaborated with Notorious B.I.G. but it was a posthumous album so I wasn’t actually able to collaborate with him while he was alive. 2Pac I would love to collaborate with. But if we are saying alive, I haven’t done a track with Eminem yet and that’s on my list. The world needs a Ludacris and Eminem record for sure.