Following their meteoric rise from suburban Sydney teens to one of the biggest rock bands in the world, 5 Seconds of Summer took a two-year break to focus on growth—as both musicians and people. The result is Youngblood, their third and most daring album to date. Full of anthemic choruses and big, bold sounds—buzzing guitars, gated drums, slick '80s-production sheen—this is the boys aiming for the rafters. But they counterweigh that with lyrics that are as intimate as ever, pining for a lost love on "Want You Back," keeping secrets on "If Walls Could Talk," and promising teddy bears and eclairs on "Valentine."