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9 April 2014, 12:31 | Updated: 9 April 2014, 12:33
Feast your eyes on some looping wonderful moments from Ashton, Luke, Calum and Michael.
They're one of 2014's biggest acts and show no signs of stopping any-time soon. 5 Seconds Of Summer tore through the pop world with their HUUUUUUGE single 'She Looks So Perfect' - which scored them a debut No.1 on the Vodafone Big Top 40.
We thought it would be the perfect time to celebrate all things Ashton, Calum, Michael and Luke by taking a look at some of the web's best GIFs of the Australian stars.
Check out our favs and tell us yours below.
(Pictures: Tumblr: SherlcockBowtie)