Song was a spokesperson for Disney's environmental campaign, Disney's Friends for Change. She was featured in several commercials on the Disney Channel for the campaign. The charity's aim was to explain how children can help preserve the Earth and invited them to go to the Friends for Change website to register and pledge, offering them the chance to help choose how Disney will invest $1 million in environmental programs. In 2010, she was the celebrity endorser of the Walt Disney Company's Disney Cruise Line. In 2011, she was also the spokesperson of the clothing brand OP.