Which 2026 Lollapalooza act is the Australian band that released "Youngblood" in 2018?

5 Seconds of Summer is the 2026 Lollapalooza act that released the 2018 song “Youngblood.”

5 Seconds of Summer, often shortened to 5SOS, is an Australian pop-rock band formed in Sydney in 2011. The group consists of Luke Hemmings, Michael Clifford, Calum Hood and Ashton Irwin, and first gained international attention through touring and an association with One Direction.

“Youngblood” was released in 2018 as the title track of the band’s third studio album. The song marked a more polished, synth-leaning direction than the group’s earlier pop-punk-influenced material. It became a major international success and reached number one in Australia.

A frequent source of confusion is the distinction between the song and the album: both are titled *Youngblood*, but the quiz asks about the single. The Neighbourhood, Empire of the Sun and Spacey Jane are also associated with alternative or pop-rock sounds, yet “Youngblood” is specifically a 5SOS release.