Rachel Uchitel - best known as Tiger Woods' mistress #1 - is checking into Celebrity Rehab, Breaking Celebrity News has learned.

Uchitel, 35, will appear on the fourth season of VH1's Celebrity Rehab with Dr. Drew. Uchitel, a New York party planner, will be treated for an addiction to pills, according to the New York Post who cited a network source.

The paper says the source did not specify what kind of pills Uchitel has an addiction to, although, as Breaking Celebrity News has previously reported, Uchitel was known to have taken the sleeping pill Ambien with Tiger while they had sex.

EXCLUSIVE PHOTOS: Rachel Uchitel Rocks Her Bikini

Other famous faces hoping to tackle their demons in front of the cameras on this season's eight-show cycle include: actor Jeremy London, former supermodel Janice Dickinson, 70s heartthrob Leif Garrett, Playboy Playmate Shauna Sand, reality TV star Jason Wahler, Keyshia Cole’s mother Frankie Lons, The Pointer Sisters’ Bonnie Pointer and paunchy socialite Jason Davis.