A lot of things went down at the 2 night event that was our 2018 iHeartRadio Music Festival but of all of them, I believe this duet was my absolute favorite. During Night 2 of the festival, Justin Timberlake took the stage to give us an abridged version of his Man of The Woods tour but also brought a huge addition to the performance in the form of Shawn Mendes. Together, the two delivered a 1-of-1 rendition of Timberlake's 'What Goes Around...', stunning the Vegas and beyond. After seeing these Timberlake and Mendes, we're definitely in need of a full song from them. See 'What Goes Around...' from our 2018 iHeartRadio Music Festival below.