Sasha_Zhuk все записи автора Panic at the Disco may have taken a stylistic left turn with its new album, but the Las Vegas quartet lost none of its loyal fans, judging from the raucous response it earned last night before a near-sellout of 5,000 at the Bank of America Pavilion in Boston.

The PATD boys, led by songwriter/guitarist Ryan Ross and singer/guitarist Brendan Urie, both 21, delivered a dazzling 75-minute, 17-song show that ably mixed new and old material. The band’s debut, “A Fear You Can’t Sweat Out,” released in 2005, had a more punky-pop sound. The new “Pretty.Odd.”, released in March, ventures more into elaborately produced pop, in the spirit of the Beach Boys’ “Pet Sounds” album, or even the Beatles’ “Sergeant Pepper.”

The songs place Ross’ clever wordcraft in shimmering pop frameworks that still maintain some feisty tempos, and Urie’s vocals are riveting.

One notable aspect Sunday night was how many in the predominantly teenage crowd were able to sing along with the tunes from the new album.

All dressed in natty sports coats, except for drummer Spencer Smith in a vest, PATD looked like an earnest young crew from the British Invasion, circa 1967. That effect was enhanced by their stage set, with fanciful platforms for the drums and the added keyboardist, as well as a big town line sign reading “Welcome to Pretty.Odd.”

Panic opened with the two songs that open the new album, “We’re So Starving” and “Nine in the Afternoon,” and Urie’s vocals were clear, tuneful, and superbly mixed. “She’s a Handsome Woman” was a neat sample of the new stuff, a kind of off-kilter rock march that suggests the witty side of Lennon & McCartney.

Ross and Urie shared vocals on the midtempo “Behind the Sea,” a potent acoustic based number. The older “I’m Constantly Thanking God for Esteban” was a torrid example of the older material’s punky kick. “That Green Gentleman” might be the most Sgt. Pepper-influenced tune on the new album, and three part vocal harmonies between Urie, Ross and bassist Jon Walker really made it shine.

The encores included a frenzied “Pas De Cheval” which inspired dancing in the aisles, and an even more pulsating “Mad As Rabbits.”

Minnesota-bred quintet Motion City Soundtrack played 45 minutes of its punk-pop, and Hush Sound and Phantom Planet played half-hour sets earlier.