Charlie Sheen's saying sayonara to social network Twitter.
After 16 months as a member of the microblogging site, Anger Management's star, 46, shut down his account and posted a final message Thursday. "reach for the stars everyone. dogspeed cadre. c out," Sheen tweeted.
Joining the site in March 2011, Sheen garnered more than 157,000 followers in the two hours since composing his first tweet, which included his catchphrase "#winning." He had nearly eight million followers at the time he deactivated his account Thursday at midnight.