"Our beautiful son turned 7 today. Happy birthday Mosey boy!" Gwyneth Paltrow gives a special Twitter shout-out to her son Moses, who celebrated his special day on Monday (08Apr13). The actress and her rocker husband Chris Martin threw their little boy a star-studded party over the weekend (06Apr13), inviting famous pals including Kate Hudson, Cameron Diaz and Gwen Stefani to their California home for the bash.