Tues. Aug. 7

 Naturally, when we got "Hair," the CD by The Lonely H in the mail we assumed it was the new one by Local H, the massive power-rock duo we love. Only when we popped it in the player did we realize this was not screamin' hard rock but a grab-bag of smart pop and semi-prog rock, music that took twists and turns, musically and emotionally. Digging in - as we reporters are prone to - we realized we were dealing with not Local H, but The Lonely H, a quintet from Port Angeles, Wash. that just graduated high school. Yep, they released their first disc, "Kick Upstairs," in 2006, when most everyone was 16. Now, they've graduated high school and are out on their first national tour, which stops at T.T. the Bear's Place Tuesday Aug. 7. There's nothing kid-like about these kids. Do a blind listening test and you'd have 'em in their early 20s. You swear they've assimilated the Beatles, Beach Boys, R.E.M. and Led Zeppelin (they probably have). We're the last to predict stardom, but we do suggest you check out these guys, fronted by singer Mark Fredson and guitarist Eric Whitman, while they're in a small joint. The Lonely H is third on a quadruple bill. Starting at 9 is Pray for Polanski (great name), then Forest Henderson, the Lonely H, and finally, the headlining Kalta Eye. Tickets: $7.

10 Brookline St., Cambridge, 617-492-0082 www.ttthebears.com