New Year's Eve is fast approaching. When the numbers 2-0-0-9 light up Times Square, they'll have been powered not by traditional energy, but by human-powered energy.

Duracell set up a "Power Lodge" in Times Square where people can come and ride a stationary bike to generate energy that will be stored and used during the New Year's celebration. And while many average Joes and Janes are surely contributing to the 230 hours of bike riding needed, some famous faces (and legs) have stopped by as well. Just think -- not only is the Duracell Power Station generating green energy, it's also helping New Yorkers shed some extra calories; 230 hours of bike riding has burned roughly 131,560 calories from the combined volunteers. That's not too shabby!

Gisele Bundchen did her part. She said her efforts were "in support of the Agua Limpa Project which was started by my father and provides clean drinking water to people in regions of Brazil." Good for you, Gisele -- but are you engaged or aren't you?. Other celebs who have hopped on the bike include Katie Couric, Nick Lachey, Natasha Bedingfield and Christian Siriano.

[via Tonic]