Mix and mingle at Bellagio as Caramel hosts Cosmopolitan Connections from 7-10 p.m. The monthly networking event offers two-for-one drink specials, and one lucky social butterfly will fly away with a complimentary bottle. (No cover.) Also tonight, Gold Lounge at Aria begins its new open bar program, which offers guys and girls all-you-can-drink cocktails and call drinks from 9:30-11:30 p.m. for about as much as you’d pay for just one round elsewhere: $20 for guys, or $10 for girls. The best part: There’s no rush, since it’s offered Thursday through Saturday. Doors 5 p.m., no cover.
Following the release of his long-delayed and highly anticipated album, Sir Lucious Left Foot: The Son of Chico Dusty, Big Boi comes to the final Cruzan Campfire Concerts of the season at the Palms Pool & Bungalows. (Doors 9 p.m., $30 GA, or $50 for VIP access, which includes a free Cruzan cocktail.) Meanwhile, UB40 performs live at Moorea Beach as part of Bubbles & Chocolate. It is the first of two nights of Rock ’n Roll Wine events at Mandalay Bay. But it’s limited to 500 people, so get there early (doors open at 8 p.m.). Think of it as the apéritif before Saturday’s big Wine Amplified concert and vino tasting ($55, WineAmplified.com). Pale, Hot Pocket-loving comedian Jim Gaffigan (pictured) returns to town for the first of two shows in the Terry Fator Theater. (At The Mirage, 10 p.m., $59-$69.) Those who remember the infamous Shark Club of Vegas’ nightclubbing past (mid-’80s to mid-’90s) won’t want to miss the Shark Club Reunion at the Copa Room featuring the original lineup: DJs Derek “The Doctor,” R.O.B., Frankie and Bubby. 7700 Las Vegas Blvd. South. Doors open 10 p.m. $5 cover after 11 p.m.
Entourage just wrapped up its seventh season, and pool season is wrapping up, too, but if you go to Wet Republic, you can get your fill of both as Entourage star Dania Ramirez (pictured) hosts. (At MGM Grand, doors 11 a.m., $50 guys, $20 girls.) Meanwhile, Britney Spears’ DJ, Havana Brown, spins at Tao Beach. (At the Venetian, doors 10 a.m., locals and all ladies free, nonlocal guys $20.) Yes, it’s still September, and yes, McFadden’s is Irish, not German, but the pub in the Rio celebrates Octoberfest nonetheless, with back-to-back open bars, at 8-10 p.m. and 10 p.m.-midnight. ($10 ladies, $20 guys.) Over at the Hard Rock Hotel, the Pixies bring their surprisingly not-yet-sold-out Doolittle Tour to The Joint (8 p.m., tickets from $40), and skateboarder/actor/reality TV’s Rob Dyrdek hosts the Street League after-party at Vanity. Doors 10 p.m., $40 men, $20 women, local ladies free.
Rehab is a wrap this weekend as Mike “The Situation” Sorrentino brings a bit of the Jersey shore to the pool. (At the Hard Rock Hotel, doors 10 a.m., $50 men, $30 women). Later that night, Vanity’s weekly Sin on Sundays event features gift-bag giveaways from Lush and offers an open Champagne bar for the ladies from 10 p.m.-midnight. Meanwhile, Revolution’s gay night, Closet Sundays, celebrates its two-year anniversary with Barbados-born R&B singer Shontelle. (At The Mirage, doors 10 p.m., $20 cover, locals free.) One final option: He got a star on the Hollywood Walk of Fame on Sept. 14, and tonight you can check out his star power in person, as Bill Maher (pictured) brings his hilarious stand-up to the Orleans Showroom for the second of two nights of performances. 8 p.m., $60.50-$88.
The workweek begins, and so does a new event at Blue Martini: The popular lounge at Town Square launches a jazz night with live music and half-price bottles of wine from 7-11 p.m. (Doors 4 p.m., no cover.) For more music, head to the Hard Rock Hotel, where Band of Horses play The Joint. 8 p.m., $25, all ages.
When it comes to Twitter, people tend to have either a love or hate relationship with the social networking tool—but for those who are able to express themselves in 140 characters or less, it can be addictive. Tonight, Blush honors local Twitteratti with an event celebrating the 30 wittiest Vegas-based Tweeters. (We said Tweeters, not tweakers!) And since it’s Tuesday, ladies drink free champagne till midnight, no matter how many followers they have. At Wynn, doors 9 p.m., $30 cover, women and industry free.
Stuff White People Like founder Christian Lander called them the whitest band ever, but Vampire Weekend (pictured) has always attracted a multicultural crowd. Regardless, the New York prep-rockers bring their East Coast sound to The Pearl tonight and follow it up with an after-party at Ghostbar, during DJ88’s weekly, hipster-friendly party, Snitch. At the Palms, concert 8 p.m., $25-$35, all ages; Ghostbar doors 10 p.m., $20 cover, local ladies free.