Christina Milian and Lil Wayne may no longer be together in a romantic capacity, but they're not letting their split get in the way of their professional relationship.

The former couple debuted their pop-leaning collaborative effort "Do It" today (September 17). The whole track is full of sexually-charged innuendo, sung by Milian, until Lil Wayne takes it next-level and comes in with a sexually-explicit verse.

Milian and Lil Wayne were together for a little over a year before breaking up in late August. A source confirmed the split to E! News, saying, "They have broken up. Their schedules started getting extremely busy and the distance was not easy for them both. They are not on bad terms. They just are taking a break. Christina is focusing on herself now and surrounding herself with her close girl friends like Karrueche Tran. They both understand each other and girlfriends are exactly what she wants about now."

Their breakup comes just months after Milian admitted that her relationship with Lil Wayne was the driving force behind her single, “Rebel.”

She said (via Entertainment Tonight), “For me, I’m so inspired by the relationship that I’m in that it’s definitely an experience. It’s that careless, hopeless, romantic love — that feeling of ‘I will do anything for you’ and it’s just incredible and so yeah, ‘rebel for you’ means ‘I’m all about you.’”

You can listen to Christina Milian and Lil Wayne's "Do It" above.

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