Tens of thousands of dollars were raised recently at the (surprisingly) green Playboy mansion for the the nonprofit Intergovernmental Renewable Energy Organization (IREO). IREO delivers renewable sources of energy to communities in need. The Los Angeles Entrepreneur's Organization (EO-LA) held its annual Business and Entertainment Charity Event at Hugh Hefner's home.

MNN reporter Sarah Backhouse spoke with celebrities on the red carpet about their interest in renewable energy.

Watch: Billy Idol (singer), Jason Chambers (Human Weapon), Vanessa Lengies (HawthoRNe), Ashley Rickards (One Tree Hill).

Watch: Darren Moore (Alter Eco on Planet Green), Olden Polynice (former NBA player), Demián Bichir (Weeds), Frank Leboeuf (former French soccer player)

Watch: Carla Ortiz (CSI: Miami), Kirsten Bradford (president, EO-LA), Robson Mello (secretary-general, IREO), Marshall Herskovitz (president, Producers Guild of America)