The episode which features Britney Spears as a special guest on CBS hit sitcom “How I Met Your Mother” airs today at 8:30 p.m. (ET/PT – New York).

Directly after the episode, CBS will launch a weeklong online auction in which bidders can bid on clothes worn by Britney in the show, and will benefit the Natural Resources Defense Council, an environmental organization.

The episode download will be up tomorrow and Don’t forget, If you live in U.S.A. or if you have American CBS channel, Be Sure to check up tonight!

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