5 Seconds of Summer (abbreviated 5SOS) is a pop-rock band from Blacktown, suburb of Sydney, Australia. The band has 4 members: Calum Hood (bass guitar, vocals), Michael Clifford (guitar, vocals), Luke Hemmings (lead vocals, guitar), and Ashton Irwin (drums, vocals). Luke, Calum, and Michael all attended Norwest Christian College in Riverstone, NSW. Ashton, however, attended Richmond High School in Richmond, NSW.Micheal is the one that came up with the name '5 Seconds of Summer'. He sent the other boys(Luke, Calum) a message over text, proposing the name. They were originally going to call it 'Bromance' but, that didn't make the cut. When the whole '5 Seconds of Summer' thing came into play it was originally going to be called 5 second summer. But that didn't sound quite right to the boys, and the also didn't quite work out. Calum writes most of their music and they often sing about love or according to Ashton, life. The boys have talked about being heavily influenced by famous rock bands such as Green Day, All Time Low, Blink 182, Nirvana etc. In an interview, they stated that their music was "Basically the love child of all their favorite bands". They have also said that their hero is Billie Joe Armstrong, the lead singer of Green Day. They supported Hot Chelle Rae on their 2012 "Whatever" tour. They toured with One Direction for their TMH and WWA tours and gained international fame. They now have their own tour "Rock Out With Your Socks Out" (ROWYSO). Their second headline tour started in February 2016, "Sounds Live Feels Live" (SLFL). Frontman Luke Hemmings is currently with singer-songwriter, Sierra Deaton, winner of 2013 X Factor US as part of duo, Alex and Sierra. Ashton is currently with his girlfriend of 3 years,Kaitlin Blaisdell. Michael Clifford proposed to his girlfriend Crystal Leigh and she is now his fiance. They have yet to announce their wedding date. As far as we know, Calum is not currently in a relationship.The band has realeased four albums, 5 Seconds of Summer, Sounds Good Feel Good, Youngblood and Calm in that order.