Photo de stock - Australian boy band 5 Seconds of Summer are Luke Hemmings (lead vocals, guitar), Michael Clifford (guitar, vocals), Calum Hood (bass guitar, vocals) and Ashton Irwin (drums, vocals). The quartet launched their eponymous debut studio album, including the hit singles ""She Looks So Perfect"" and ""Don't Stop"" on June 30. To help them celebrate, the boys' superhero alter egos have been spotted around the UK capital on intrepid adventures. On Monday July 1, late into the night, the boys were spotted abseiling - scaling down London's Senate House - sixty four metres high. Their debut album peaked at number one on iTunes in 69 different countries when released, going straight to number one on iTunes in the UK - all three tracks from the album went straight to the top spot on iTunes last week. The record stores urgently demanded for more stock by the morning, so the 5SOS superhero characters came to the rescue and abseiled down Senate House to get copies of their debut album out to stores. Finally, after their abseiling adventure and a day getting 5sos albums to the people of London, the boy's got into customised London cab ready to take them back to their secret base for a good night's rest. **Mandatory Credit: Idil Sukan/Draw HQ/WENN.com** Featuring: Luke Hemmings (lead vocals,guitar),Michael Clifford (guitar,vocals),Calum Hood (bass guitar,Ashton Irwin (drums Where: London, United Kingdom When: 02 Jul 2014 Credit: Mandatory Credit: Idil Sukan/Draw HQ/WENN.com