iiO (pronounced "eye-oh") was a New York City-based dance music act composed of singer and songwriter Nadia Ali and record producer Markus Moser.

In 2011, he released the studio album Exit 110, which again, featured Ali on vocals and was announced as the final project of the act.

Nadia Ali was working in the New York offices of Versace, when a co-worker introduced her to record producer Markus Moser, who was looking for a female singer to collaborate on some of his productions for a girl group.

Their first release was the 2001 single, "Rapture", a song Ali wrote in 30 minutes based on a relationship with an Australian man she met in a nightclub.

In April 2011, iiO's second studio album and final project, Exit 110, was released, featuring Ali on vocals.

[11] Moser, on the other hand, said he decided to use material Ali had recorded before she left iiO to release a new album due to a demand by fans.