Many celebrities have entered rehab to deal with their problems and EnStars put together a list of some of them.

Chris Brown: The singer is the latest celebrity to check himself into rehab. Brown is seeking help for anger management in the wake of an assault charge.

Aaron Carter: The singer entered rehab in 2011 to deal with his addiction to Xanax. (Read our interview with Carter here.) 

Zac Efron: The former High School Musical star was in rehab for about five months in 2013, according to E! News.

Lindsay Lohan: The actress had her sixth stint in rehab in 2013. 

Farrah Abraham: The Teen Mom star did a short stint a Florida outpatient program for alcohol abuse in 2013.

Brooke Mueller: Charlie Sheen's ex-wife was placed in rehab earlier in 2013 for prescription drug abuse.

LeAnn Rimes: The singer checked herself into rehab in 2012 to seek help for anxiety and stress.

Mike "The Situation" Sorrentino: The reality star checked himself into rehab to deal with a prescription pill problem in 2012.

Kim Richards: The Real Housewives of Beverly Hills star checked herself into rehab in 2012.

Matthew Perry: The former Friends star entered rehab for the third time in 2011.

Demi Lovato: The X Factor judge entered rehab in 2010 because of drug and alcohol abuse.