Last fall, we asked if you had the talent to design for superstar Mariah Carey in an online contest celebrating her newest fragrance, Luscious Pink. Fans vied to win the honor of dressing the pop diva by submitting original sketches of looks that ranged from short and sexy to classically elegant. And now Mariah is giving PEOPLE.com the exclusive first look at Mariah stepping out in the winning dress. Created by 20-year-old Julian Contreras from San Jose, the pink concoction balances the star’s love of body-conscious silhouettes with luxe red carpet glamour. And while Mimi had originally planned to wear the look as part of an upcoming tour, she loved the chic style so much that she skipped the stage and wore it for a romantic dinner with husband Nick Cannon. Starting today, Mariah is auctioning off one of three copies of the dress in existence on eBay, with all proceeds benefiting Susan G. Komen for the Cure. Bids start at $500, with the winner being determined May 30th. Click here to make it yours!