Jennifer Lopez owns two of the same tuxedo dresses by Rachel Zoe! The superstar first wore the celebrity stylist and fashion designer's look in Paris in June. And Lopez liked the style so much, her stylists Rob Zangardi and Mariel Haenn snagged another one so they could transform it into a stage look! The pair creatively covered the dress in shimmering crystals for her concert at the Mohegan Sun last weekend. Find the same look—sans sparkle—for $495 at bergdorfgoodman.com. Tell us: When was the last time you modified a dress?
Plus, for more hot concert looks, click through the gallery.