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Lindsay Lohan has a very important commitment to complete before she begins her court-mandated stint in rehab for 90 days: The Freaky Friday star will join Charlie Sheen on an episode of Anger Management!

Lohan is set to start shooting the episode for FX next week for an April debut. Lohan will play herself as a patient who ultimately develops a thing for Sheen’s character. (He plays a therapist).

Earlier this week, Lohan accepted a plea deal in a misdemeanor car crash case that includes 90 days in a locked-down rehabilitation facility that she won’t be able to leave.

The 26-year-old pleaded no contest to reckless driving, lying to police and obstructing officers who were investigating an accident in June.