Christina Aguilera's Baby Bump Looks So Big in 'Pass the Red Cup' Campaign Pics

Christina Aguilera signs a cup in these new campaign photos for World Hunger Relief’s “Pass the Red Cup” challenge which launched on Tuesday (August 5).

The 33-year-old pregnant entertainer, who serves as the global spokesperson for WHR, signed lots of red cups for charity and used her baby bump as a table to lean the cup atop while writing messages to fans!

“It’s heartbreaking to me that in our social media driven, increasingly-connected world, nearly 850 million people go to bed hungry each night. And this includes far too many children. It’s a subject so close to my heart and has been for a long time, being a mom,” Christina told the Huffington Post.

Use the hashtag #PassTheRedCup to support the cause on social media.

FYI: Christina is wearing a Rachel Pally dress.