Lea Michele on Nerves and Kissing Ashton Kutcher

Glee's Lea Michele is no stranger to belting it out to large crowds or planting her lips on a handsome boy or two, but in the star-studded film New Year's Eve, Lea gets the opportunity to do both on the big screen. So we had to ask, what's scarier -- kissing a big star like Ashton, or singing in front of thousands?

"Oh my gosh, singing," Lea replies almost immediately. "I mean who wouldn't choose to kiss Ashton?"

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Although the 25-year-old has a rich background on Broadway as well as performing countless numbers on Glee, Lea concedes to falling prey to a butterfly or two when she sings, though the phenomenon is something she mostly experiences in a one-on-one setting.

"I would choose to sing in front of a hundred thousand people over one person any day," confesses Michele. "I get to sing all the time but there is something about having to sing in front of just one person that is incredibly nerve wracking and it's scary. Cory Monteith, who I work with on Glee, I sing in front of him all the time and the other day I had to do a song just one-on-one directly to him and I was so nervous."

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NYE co-star Zac Efron also gets to smooch an on-screen legend (Michelle Pfeiffer), and while his romantic scene was nearly ruined by a mischievous round of confetti, Efron says he "roll[ed] with the punches" successfully averting the near disaster of an awkward New Year's kiss. "Sometimes a piece of confetti is going to land in your mouth just before you're about to kiss Michelle Pfeiffer," jokes Efron. "You never know what fate is going to hand you."

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The New Year's Eve ball drops in theaters December 9, featuring a mega-watt cast consisting of: Halle Berry, Jessica Biel, Jon Bon Jovi, Abigail Breslin, Chris "Ludacris" Bridges, Robert De Niro, Josh Duhamel, Zac Efron, Hector Elizondo, Katherine Heigl, Ashton Kutcher, Seth Meyers, Sarah Jessica Parker, Michelle Pfeiffer, Til Schweiger, Hilary Swank and Sofia Vergara.