Brandon, Edwin, Austin, Nick, and Zion of PRETTYMUCH return to the Young Hollywood Studio to scoop us on their hot summer jam "Summer On You", which was written by none other than Ed Sheeran, and how they were able to be involved in the making of the music video for the song! They also talk about touring with Khalid and getting to perform "OTW" with him live on stage -- which they kindly reenact for us!