Lance Bass is in a new romantic relationship, RadarOnline.com has learned exclusively.

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The heartthrob singer has been dating a handsome guy named Brent since meeting at a party in October.

"They met at the [L.A. Gay & Lesbian Center's] Halloweenie party at the Hollywood Forever Cemetery," a source told RadarOnline.com exclusively. Since the October 23 bash, Lance and Brent "have been dating ever since."