Vanessa Carlton Vanessa Carlton

Singer Vanessa Carlton came out as a bisexual during her headline performance at the Nashville Pride concert over the weekend, according to

"I've never said this before, but I am a proud bisexual woman," Carlton announced Saturday in front of a crowd of 18,000.

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Carlton, best known for her singles "A Thousand Miles" and "White Houses," has been previously linked to John Mayer and Third Eye Blind frontman Stephen Jenkins.

The nonprofit festival, which returned for its 22nd year, celebrates the gay, lesbian, bisexual and transgender community in Middle Tennessee.

An email to Carlton's rep was not immediately returned.