The Bad Romance singer, who has given herself a stylishly understated new makeover as of late, reportedly enlisted the acclaimed bridal designer to create a one-of-a-kind gown for her big day.
A source told Life & Style magazine: ''She trusts Vera to create an elegant, flowy dress that will fit into her dream wedding!''
Along with her haute couture lines, Vera Wang has previously designed custom-made dresses for a number of other celebrities, including Victoria Beckham, Kim Kardashian and Mariah Carey.
Life & Style mag also reported that the 29-year-old hitmaker will wed 33-year-old fiancé Taylor Kinney in a relaxed beach wedding this summer at her $23 million Malibu mansion, with pal Tony Bennett in attendance to sing their collaboration Cheek To Cheek.
The couple met on the set of Gaga's You & I music video (where he played the mad scientist captor to her refugee mermaid) and got engaged this Valentine's Day after four years of dating.