Taylor Swift turned up the heat Tuesday night with her latest appearance in the Victoria's Secret Fashion Show in London, reports EntertainmentWise.com, as the 24-year-old performer set a first with her sexiest outfit ever on the runway.

With her second time performing in a Victoria's Secret show, Taylor Swift showed that she might be ready to drop her wholesome image as she strutted her stuff on the catwalk wearing a see-through black lace dress over black knickers and a matching black bra.

Swift was accompanied by friend and Victoria's Secret model Karlie Kloss on the catwalk, also wearing a matching, but raunchier, black lace outfit. The singer's high-waisted panties and black bra get-up was accentuated by a sheer, flowing train that trailed Swift as she strutted on the runway.

"Swift proved she has the credentials to be a VS model herself, thanks to her endless legs and taut tummy," writes Colette Fahy of The Daily Mail.

Regarding her friendship with Kloss, Swift has said in an interview, "I look for people who really have their own passion in life. My friends, they all are chasing their own dreams, and they all have their own ambitions."

"You're supposed to surround yourself with people who challenge you and motivate you and make you want to be smarter, stronger, better," Swift added. "So that's what my friends do for me and I'm so happy to have so many good ones right now."

Swift's appearance on the fashion show is widely seen by industry observers as a way for Victoria's Secret to "drive sales" and "pander" to her fans in the hopes of getting new customers.

"Swift has what is possibly the most ardent fan base of any singer. She is adored by millions of teenage girls and young women across the US and worldwide - exactly the type of shopper Victoria's Secret is trying to attract," writes Ashley Lutz of Business Insider.

"By hiring Swift to perform and treating her with utmost respect, the brand won the approval of the so-called Swifties," Lutz adds. "Victoria's Secret will likely reap big benefits from once again making Swift the star of the show."