Lea revealed that the new 'do was actually the result of a whim.
"Oh my God! It was totally spur of the moment," she revealed of her fringe. "I was just at home getting ready tonight and I was like, 'I think I would like some bangs.' So we cut them."
In fact, when Lea hit the premiere, it was the first time her castmates from her FOX show got to see her new look.
"This is real and they don't know it at work right now," she said. "We'll be using some headbands for a couple of weeks I think."
Lea previously had some fake bangs last year for a photoshoot.
In related Lea news, the brunette beauty raved about "Glee's" latest filming schedule, which has seen the gang shooting their Lady Gaga inspired episode.
"We're doing our Lady Gaga episode right now, so we were dancing our butts off this morning," she laughed.
"We're all different Lady Gagas," Lea added of the upcoming show, set to air later this season. "All the girls have different Lady Gaga looks."
Related Content from AccessHollywood.com:
VIEW THE PHOTOS: Gorgeous 'Glee' Gal Lea Michele
VIEW THE PHOTOS: The Glorious Cast Of 'Glee'
PLAY IT NOW: Dish Of Salt: 'Glee' Cast Celebrates Return To TV
PLAY IT NOW: On TV: FOX's 'Glee' Returns (April 8, 2010)