Taylor Swift's Super Bowl look! Singer proudly wears '87' necklace

showed her support for boyfriend with an '87' necklace as she headed to the in on Sunday.

The pop star donned a gold pendant necklace bearing his jersey number as she made her way into the Allegiant Stadium alongside her entourage.

The jewelry costs quite the pretty penny - the Stephanie Gottlieb necklace is priced at a whopping $4,250.

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