Christian Bale Sings the ‘Powerpuff Girls’ Theme Song (Video)

The famously intense “Batman” star shows his lighter side

Who knew Christian Bale was such a softie. The "Batman" star is apparently a closet cartoon fan. With some help from his "Fighter" co-star Mark Wahlberg, Bale offered a rendition of "The Powerpuff Girls" theme song. The last time he exercised his vocal cords like this was "Newsies."