Want to get your face in front of 50 million people? Here's your big chance — have it featured on a McDonald's (MCD) cup or bag.

The world's largest fast-food company announced what it called an online casting call Monday, giving customers a chance to be featured on its packaging used daily in more than 100 countries.

As many as 25 winners will be chosen from consumers' entries at http://www.mcdglobalcasting.com, where hopefuls must submit a personal story of what they love in 100 words or less — in any of 16 languages — and a digital photo capturing the essence of their story.

It's all part of McDonald's Corp.'s latest push behind its ubiquitous "I'm lovin' it" advertising campaign.

The company said it will select its new packaging "stars" based on submissions that capture the "I'm lovin' it" spirit with themes of inspiration, passion and fun.

"Our first online global casting call uses technology in a new approach to bring the energy and spirit of 'I'm lovin' it' to life by connecting with consumers and giving them a stage on which to express themselves about the things they love," said Mary Dillon, McDonald's global chief marketing officer.