What a week it's been for Charlie Sheen. Nevermind his media rants, boasts of tiger blood, new Twitter account, drug tests, flaunting of "goddesses" and latest custody crisis. Now, Sheen has announced a whole new agenda: helping others.

Sheen, 45, told Access Hollywood on Friday that he's making plans to travel to Haiti with Sean Penn, one of Hollywood's most active providers of assistance ever since the nation's devastating January 2010 earthquake.

"We're going to do a couple things first, and then it looks like we're heading down [to Haiti]," Sheen confirmed during his call-in interview. "And I'm excited as hell because, you know, if I can bring the attention of the world down there, then clearly, this tsunami keeps cresting."

Penn spends time in Haiti frequently as his foundation, J/P Haitian Relief Organization, continues charitible efforts on the ground. The Oscar winner's rep initally denied Sheen's claim. But then Penn spoke up late Friday about Sheen helping Haitians.