5 Seconds of Summer at Toyota Pavilion at Concord

5 Seconds of Summer (5SOS (pronounced 5 sauce (not 5 es oh es))) are an Australian band (not in the same category as boyband because they're all talented as far as instruments) that consists of lead vocalist and rhythm guitarist Luke "Hair Game Strong" Hemmings, lead guitarist Michael "Level 9000" Clifford, bassist Calum "The Funk" Hood, and drummer Ashton "Beatz Master" Irwin. They have three albums out, 5 Seconds of Summer (2014) which promptly hit number one on the charts of more than a dozen countries around the globe. Sounds Good Feels Good (2015) found the group collaborating on songs with Good Charlotte's Benji and Joel Madden, All-Time Low's Alex Gaskarth, the Monsters & the Strangerz, and others. Included were the songs "Permanent Vacation," which they had introduced while on tour, the lead single "She's Kinda Hot," and "Jet Black Heart." Upon its release, the album went to number one in the U.S., U.K., and Australia on the same day. Youngblood (2018) committing to a more sophisticated dance-pop sound that they'd hinted at on Sounds Good Feels Good. Bolstered by the hit singles "Want You Back" and "Youngblood," the album became the group's third consecutive full-length studio effort to hit number one on the Billboard 200.