Find the old-timey barbershop in the Cosmopolitan hotel, head through the “janitor’s closet,” and you’ve found the swanky, Prohibition-style speakeasy where pop stars like to drop in for surprise performances. (Machine Gun Kelly showed up for a late-night set in 2021, and Silk Sonic played a rowdy cover medley after their 2022 show at Park MGM.) There’s live music every night at the Barbershop: mostly country and rock, plus Tuesday karaoke with a backing band.

This is Vegas, so of course there’s a cabaret lounge serving caviar and dry-ice cocktails hidden behind a doughnut kiosk in the ARIA Resort & Casino’s food hall. Seats are limited in Easy’s velvet-lined jewel box of a room, where local blues, jazz, and soul ensembles take the tiny stage each night, among them former American Idol contestants and moonlighting morning show hosts. (Another thing about Vegas: Everyone who lives here has at least two jobs.)

The ritzy NoMad hotel restaurant is known for retro supper club dining in a library stocked with books from David Rockefeller’s collection. But when jazz musician Brian Newman is in the house, the mood shifts to After Dark at the NoMad Library, where the Lady Gaga bandleader reimagines old standards and jazzed-up current hits. You never know who might make a cameo: the cast of Magic Mike Live, burlesque star Angie Pontani, or Gaga fresh off her “Jazz & Piano” residency next door.

The opulent Wynn supper club used vintage nightclubs like the Copa Room as design references, so Delilah feels like a time capsule of a bygone era of Vegas nightlife: brass palm trees, velvet sofas, and black-and-white photos of the desert’s mid-century heyday. The sister club of the L.A. hot spot opened in 2021 with sets from Justin Bieber and Andra Day, though typically torch singers and jazz ensembles belt out American standards to accompany your shrimp cocktail and martini.

The jazz club and restaurant gets its name from Vegas Vic, the giant neon cowboy who’s been waving his thumb over downtown since 1951. The Symphony Park lounge is decorated with memorabilia from Vegas Vic’s original home, the long-gone Pioneer Club casino. In the oak-paneled cabaret dining room, visitors can catch sets from the Las Vegas Academy jazz combo and performances from magician Penn Jillette’s trio. True to Sin City form, the bar and gaming area are open 24 hours a day.

The Sand Dollar Blues Bar opened in 1976 as an ocean-themed restaurant and soon became Vegas’ live-blues epicenter, frequented by Muddy Waters and Mick Jagger. Having survived a few name changes and a Bar Rescue renovation attempt that didn’t take, today it’s an unpretentious dive with extreme holiday decor, surprisingly good pizza, and live blues, rock, and roots music nightly. (Its flashier outpost, Sand Dollar Downtown, opened in the Plaza in 2022.)

First things first: It’s not that kind of dispensary. Behind the red door in an Eastside strip mall, you’ll find the old-school jazz lounge, which hasn’t changed much since opening in 1976, from the water wheel to the shag carpeting. (Patrons do park their horses outside less frequently nowadays.) In 2012, the venue began hosting weekly jazz showcases programmed by a renowned UNLV music professor, with lineups graced by legends like Wynton Marsalis now and then.

Tucked in an unassuming Chinatown strip mall is the latest addition to Vegas’ jazz scene, where late-night jam sessions are paired with high-end sushi. (The owners, Indonesian immigrants who also run a jazz club in Surabaya, figured chopsticks make less noise than silverware.) The city’s new guard shares the stage with old-school luminaries in Maxan’s nightly lineups, where local acts play everything from traditional bebop to jazz covers of video game music.

Opened in 2023 in Summerlin’s Red Rock Casino, the glitzy Rouge Room offers the Vegas supper club experience minus the hassle of Strip parking. Velvet curtains, champagne towers, and a baby grand piano give a Moulin Rouge feel to the venue’s cabaret shows, which run Thursday through Sunday and are quite the grand affair: Guests sip martinis and snack on caviar while lounge singers croon on their nights off from other local variety shows. Between sets, DJs take over.