Top Definition
The aussie band that consists of Calum Hood, Ashton Irwin, Luke Hemmings, and Michael clifford. They are also THe band that i have been a fan of for 3 years and i simply cry (sob) whenever i hear any of their songs. so uh yea.
5 seconds of summer (5sos) is my life and if you insult them i will find out where you live (just kidding, maybe.)
by 5sos since 2011 June 22, 2014

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