If you’re a Weezer fan, Las Vegas is where you wanna be. Sure, the alt-rockers have played more shows in other towns, and they’ve probably played better shows than the ones they’ve staged here. But Friday night inside the Hard Rock Hotel, Rivers Cuomo & Co. will do something they’ve never done before: play their two most adored albums back to back in a single concert.

Even if you lost track of the band sometime around “Hash Pipe,” you probably know that means the self-titled Blue Album and Pinkerton, and you’ve probably already called the Joint to see about tickets (still available at press time). Although the two discs were released just two years apart (1994 and ’96), the setlist promises some serious stylistic diversity. The debut is a sugary rush of geeky power-pop (“Buddy Holly,” “Undone: The Sweater Song,” “Say It Ain’t So”), while bashed-then-beloved Pinkerton has been credited as a touchstone in the development of emo. But even if you don’t like Dashboard Confessional and Taking Back Sunday, it’s easy to get down to songs like “El Scorcho,” “The Good Life” and “Pink Triangle.” Be there or be left waiting for a Red Album/Ratitude double bill.