Heartthrob Ashton Irwin, of 5 Seconds Of Summer fame, has designed a special T-shirt for the band's official merchandise collection and it is currently being sold on their official web store. 

The drummer created a really cool black and white 'headphones doodle' design (pictured left) and fans can pre-order the striking item for £16 now although the actual release date isn't until June 1. The shirt is unisex and comes in four sizes. 

Irwin, meanwhile, took to his Twitter page last night and told his followers that he's grateful to the band's crew and team for being so supportive and hard-working: "Appreciative for our crew... Thank you for putting up with us for a few years now, you work so hard and we love you! Best tour family ever!"

The 'She Looks So Perfect' stars will kick off their Rock Out With Your Socks Out tour on May 4 with a performance at the MEO Arena in Lisbon, Portugal and Irwin tweeted: "Thank you from the bottom of my heart if you have a ticket for the shows... We won't let you down!"

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Watch footage from the band's tour diary here: