Jordin Sparks and Chris Brown

Jordin Sparks and Chris Brown collaborated on the 2008 duet "No Air," a powerful ballad about emotional dependence. Sparks had won American Idol in 2007 at age seventeen, making her the youngest winner at the time, while Brown was already an established R&B artist. The song appeared on Sparks' self-titled debut album and became one of the year's most successful collaborations, showcasing both artists' vocal abilities.