Jessica Alba has started 'tweeting' after technically-savvy husband Cash Warren bought her a BlackBerry just so she could keep in touch with her fans.

The sexy Fantastic Four star is one of the few celebrities who never uses the social networking site, but that's about to change.

She says, "I've never Twittered... I'm gonna start today. Today is gonna be my first day of twittering/tweeting. I have my BlackBerry, so I can tweet."