Angelina Jolie has finally joined the social networking site Twitter, it has emerged.

According to a source, one won't hear any 140-character musings from the actress as she's locked her account right now.

Jolie apparently has no followers and isn't following anyone on the site.

"Jolie had her people obtain the account for her so no one else could have that username," quoted a source as saying.

"There was actually someone else using @AngelinaJolie but Angelina requested the account suspended and took it over."

The insider adds that the Salt star, 35, might become active on the microblogging site "later this year."

"If she uses it, it will be for charity-related items or sharing links," the source added.