David Guetta is set to team up again with Usher - this time for a "really crazy" song.

The pair have previously worked together on Guetta's 2011 single 'Without You', and speaking to the Hollywood Reporter, Guetta confirmed they are working on more music.

When asked about possible collaboration with Usher, Guetta replied:

"Actually we are. These are really big records that we're working on right now. It's really crazy."

Guetta however wasn't giving much away about the new music, simply stating that they are working on "something really, really, really, crazy."

As previously reported, David Guetta recently went on record to speak about one of his other collaborators - Nicki Minaj - calling her perfectionism "almost crazy".