xtinamaxshrek460new.jpgPantages Theatre

Christina Aguilera knows how to make her son Max the happiest kid in town!

The 30-year-old The Voice star took her 3-year-old boy to catch a performance of Shrek The Musical at the Pantages Theatre in Hollywood. They even got to go backstage to meet the famous green ogre. Shrek-tastic!

Find out what project Xtina has been promoting around the world ... after the jump.