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Has Lea Michele hit a low note with her latest red carpet look?

The Glee starlet, 23, exposed her lacy black bra while celebrating the launch of at the Smyth Hotel in NYC on Tuesday (the same night the show's finale aired on Fox).

The Broadway veteran paired her nude chiffon Giambattista Valli dress with black pumps.

A source close to the actress recently told Us Weekly that Michele is a diva on the set of her hit Fox show.

"Lea acts like she's better than the rest of the cast," says the insider. "But the thing is, she legitimately is."

Still, the actress has bonded with the cast during their 14-hour work days.

"We've become so close," costar Dianna Agron tells Us. "We're like a family."

On other Glee news, reports that John Stamos will play Emma's (Jayma Mays) dentist love interest next season.

Tell Us: What do you think of Michele's bra-baring look?