Holly Madison recently opened up to Us Weekly about her daughter Rainbow's latest milestone, and shared her favorite workout at the opening of her club and show in Las Vegas. Credit: Denise Truscello/WireImage.com

Vegas vixen! Holly Madison has set her sights on Las Vegas, where she's the headliner and hostess of 1923 Bourbon & Burlesque at the Mandalay Bay in Las Vegas. 

A 1920s speakeasy-style bar and cigar lounge, 1923 features intimate, in-house singing and dancing performances by the 34-year-old entertainer with her troupe of dancers, Bourbon Burlesque.

For the club's opening on May 1, Madison went Old Hollywood with a long, silver gown and her new sultry red hair. Her Girls Next Door co-star Bridget Marquardt even showed up to cheer her on! 

At the opening, she opened up to Us Weekly about her adorable daughter Rainbow Aurora, who she's raising with her husband Pasquale Rotella. Even though her baby girl just turned one last month, Madison already signed her up for a hobby! 

"She's taking swimming lessons," Madison says. "She's learning a lot and it's really important." 

She also dished on how she keeps her bombshell shape (during the show, she strips down to a sexy corset bustier!).

"My favorite workout is hip hop abs," she shares. "You have to tilt, tuck and tighten!"