Jamie-Lynn Sigler & Mark Sanchez Are Turning Up The Heat! Mark's Even Dueting With Her BFF Lance Bass!

Wed, May 26, 2010 11:53am EDT by 1 Comment

Twitter, Getty Images

Twitter, Getty Images

The former *NSYNCer and Jets QB rock out to some Jon Bon Jovi. It looks like things are moving super fast between Jamie and Mark!

Jamie-Lynn Sigler‘s relationship with BF Mark Sanchez seems to be heating up! He spent Saturday night karaoking with Jamie’s BFF Lance Bass! Actor Paul Zablidowsky of IFC’s Z Rock took to his twitter May 22 to say: I’m hanging out at an after party with Mark Sanchez and Justin Keller from the JETS as well Lance Bass.” Minutes later he wrote: “Jamie-Lynn Sigler just joined us. The night keeps getting better.” Paul then posted a pic of Mark and Lance following their onstage rendition of Bon Jovi‘s “Livin’ On A Prayer.” It looks like Jamie has introduced her new BF to her friends!

We told you EXCLUSIVELY last month that Jamie and Mark were flirting at a Tribeca Film Festival party, and it seems like the pair has taken their relationship to the next level! Jamie previously dated Entourage star Jerry Ferrara, while Mark was linked to model Hilary Rhoda last year.

Whatever the group ended up doing, they clearly had fun. Paul tweeted at 8:44 the next morning: “I’m at Dee Snider charity event now running on 1 hr sleep.” Wow.

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