Scarlett Johansson 'Scared Of Singing Live'

Scarlett Johansson may be a world famous movie star, but she still has stage fright and is worrying about performing her new songs live.

The actress has collaborated with Pete Yorn on his new 'Break Up' album (her second record, following 2008's 'Anywhere I Lay My Head'), and fears having to sing them in front of a live audience.

"I have terrible stage fright." Scarlett said in a new interview with Black Book. "I've never had to sing in front of a live audience, other than some back-up vocals."

"It seems incredibly revealing, very different from making a red-carpet appearance, where the glitz and glamor of movie stardom... can mask any sort of insecurity."