Shortly after entering rehab, he was formally dismissed from the band.
Before the birth of his daughter, Hoon entered rehab again.
Before entering rehab, he had left money for his roommate to keep the house and pay bills.
In 1999, Campbell entered rehab after a five-year addiction to cocaine.
He entered rehab and has been sober since 2003.
"It's not like he's entering rehab at the end of the season."
In the show, he suddenly becomes custodian of his sister's three children after she enters rehab.
After the incident, he entered rehab for a second time and reportedly has not had a drink since.
Birch entered rehab in 2006, and missed six months of work.
Afterward, Michael attempts to force her to enter rehab, only to find that he cannot legally do so.