Pregnant singer Christina Aguilera is ready to hit the big screen and has already signed on to star in a movie alongside Katie Holmes.
The duo will team up for family drama 'Humboldt Park,' which begins shooting in February.
A source says, "(Holmes) is trying to prove she can do more than fluffy popcorn movies", and starring alongside Aguilera "shows she's willing to take risks".
Aguilera is due any day now, which means she'll be going to work just weeks after giving birth.
