For the past 15 years – whether you’ve been listening or not – the brothers Hanson (Isaac, 29,Taylor, 27, and Zac, 24) have been putting out records. But pop culture has fixed them more or less in 1997, when the mostly prepubescent brothers’ “MMMBop” became an infectious mega-hit.

Any devoted Hansonite can tell you – and they’re not in short supply – there have been three studio albums in the meantime. The group drove the point home recently when they played a sold-out five-night residency at New York’s Gramercy Theater, running through one full album each night. The final evening was devoted to their latest, Shout It Out, a funkified, R&B-inflected record that’s getting more serious attention (not to mention YouTube hits for its first video, “Thinking ’Bout Somethin’”) than any since Middle of Nowhere catapulted them to fame years ago. Are you ready? You may soon be listening to Hanson again.