American actress, Grammy-nominated singer and activist

An American singer-songwriter.

An American actress and model who stars as Serena van der Woodsen in the television teen drama series Gossip Girl.

An Australian conservationist, environmental commentator, documentary film maker, public figure, and occasional actress.

American recording artist, actress, dancer and model who rose to fame as one of the founding members of the American girl group Destiny's Child

An Italo-French songwriter, singer, actress, former model and wife of the President of the French Republic, Nicolas Sarkozy.

An English theoretical physicist and cosmologist, whose scientific books and public appearances have made him an academic celebrity

An American actress

An American-born Australian actress, singer, film producer, spokesmodel and humanitarian.

A mountaineer, researcher, winemaker and motivational speaker

An American actor, screenwriter, and philanthropist

An Australian rock band, formed in 1973 by brothers Malcolm and Angus Young.

An American journalist and author.

A Scottish recording artist

A well known surfer from Pacific Palisades, California

Cancer survivor, mountaineer and recipient of the Don't Ever Give Up Award

An American Internet entrepreneur who co-founded Revision3, Digg, Pownce, and Milk

A Barbadian R&B recording artist and songwriter

Wade Davis has been described as a rare combination of scientist, scholar, poet, and passionate defender of all of life's diversity.

An American actress known for her performance as Amanda Carrington on the 1980s American prime time soap opera Dynasty.

An American author, journalist, activist, and professor of journalism at the University of California, Berkeley

David R. Boyd is an environmental lawyer, professor and former executive director of the Sierra Legal Defence Fund

An American actress

An American actress, model, and occasional singer

A former World No. 1 professional tennis player from the United States.

An American actress, fashion designer, producer, and author.

An American singer-songwriter.

A Scottish television and film actor and director.

A former American professional basketball player, who played most of his 15-year NBA career for the Miami Heat.

Mark Zuckerberg is an American entrepreneur who co-founded the social networking site Facebook.

Severn Cullis-Suzuki is an environmental activist, speaker, television host and author

An American musician, singer-songwriter, recording artist, and music producer

A Canadian–American actor, author, comedian, producer, activist and voice-over artist

A South African activist and retired Anglican bishop who rose to worldwide fame during the 1980s as an opponent of apartheid.

An American singer, songwriter and actress

An Australian philanthropist

A Spanish actress.

Australian actress and theatre director

An Australian-based food stylist, author and magazine editor

American business magnate, socialite, author and television personality

An American actor and producer