5 Seconds Of Summer, also known as Luke Hemmings, Ashton Irwin, Calum Hood and Michael Clifford performed for a small group of fans at 104.7 KISS FM's SoundSpace at the iHeartRadio studios in Phoenix, AZ and it was a performance fans will never forget.
The boys played two songs including their hit single "Want You Back" which has proven to be a starting point for the boys as they move their music into a more 'edgy' side of themselves.
Check out the photos from their exclusive performance below:
Lucky fans not only got a chance to see the boys perform two songs acoustically, they also had the opportunity to meet the boys personally!
Check out the photos below!
Photos: Alex Siordian