5 Seconds of Summer may have gained international exposure opening for One Direction, but they've always insisted that they're a band, not a boy band. And they're backing that up with this debut. Writing all their own songs and enlisting veteran pop-punk producer John Feldman (Goldfinger, The Used), the Australian four-piece deliver a set that's more Blink-182 than 98 Degrees. Not only do the jagged riffs and spastic sing-along hooks evoke Blink; the lyrics do, too. "She's got a naughty tattoo, in a place I want to get to," sings teenage lothario Luke Hemmings on "18." The global smash "She Looks So Perfect" is joined by a mix of spunky styles, from the midtempo anthem "Long Way Home" to the lighter-waving slow jam "Beside You." 5SOS are a band all right, and a capable one at that.