Stars like Mariah Carey, Jessica Simpson, Emeril Lagasse and Martha Stewart will help get the word out about 'Come Together,' a new charity push from Macy's and Feeding America that aims to serve 10 million meals to American families in need.

'Come Together' asks the public to hold charitable dinner parties, where guests will bring donation pledges to Feeding America instead of a traditional hostess gift. Macy's will match the donations until 10 million meals have been served.