Actress Lindsay Lohan is "thrilled" to be heading back to work after landing her first stage role in West End.

The `Mean Girls` actress was confirmed for the role of Karen in a new London production of David Mamet's Hollywood satire Speed-the-Plow, Thursday, marking her theatre debut, reports contactmusic.com.

Lohan has now taken to Twitter to share her joy at being given the opportunity to show off her acting chops on the stage.

"Thrilled to be a part of this production #liveyourdreams #nevergiveup,` she tweeted.

The high-profile part is a huge boost for Lohan as she attempts to rebuild her acting career following a court-ordered rehab stint last year.