Hollywood actress Natalie Portman was left red-faced at the Environmental Media Awards after organisers aired a clip of her singing about recycling when she was just 11 years old.
The actress was presenting a prize at the ceremony in Burbank, California, Saturday when footage of her as a youngster, dancing and singing about the benefits of recycling, began to roll, reports eonline.com
Portman laughed off the embarrassing gag and went on to hand the EMA Corporate Responsibility Award to Jeff Skoll, producer of "The Cove" and environmental movie "The Crazies".
Veteran Hollywood star Jane Fonda also showed up to honour her ex-husband Ted Turner for his foundation's work in stopping female genital mutilation.
The ceremony, which pays tribute to TV and films with a positive environmental message, also saw James Cameron's "Avatar" win the top movie prize.
Hit sitcom "30 Rock" and TV drama "Bones" were both honoured for episodes which tackled conservation themes, while HBO documentary "Gasland", about natural gas drilling in the US, was also celebrated.