Ringing in the new year with her fans, Britney Spears performed for her “Piece of Me” show in Las Vegas on Tuesday (December 31).

While on stage, the 32-year-old singer surprised the audience by dragging her boyfriend David Lucado out by a leash and forced him on his hands and knees.

Also during the performance, Miss Spears reportedly suffered a wardrobe malfunction when her costume flew open while singing “Circus.”

Although her backup singers immediately rushed to her aid, Britney didn’t skip a beat and continued to rock the show without any interruptions

Before making her unforgettable performance, the "Stronger" hitmaker took to her Twitter account and tweeted, "Got some fun surprises planned for the show tonight... who's ringing in the New Year with me tonight?"