According to Eonline:
Singer Aaron Carter has entered a rehab center to treat addiction issues, a source tells E! exclusively.
The 23-year-old former Dancing With the Stars contestant checked into a private Southern California facility earlier this month, says the source
The source reveals that Carter’s choice to go to rehab was his move to “finally get help” and not a court-mandated decision. “He was struggling recently and needed this,” adds a source.
Once a teen star (and reported romantically linked to both Lindsay Lohan and Hilary Duff), Carter has most recently been in Orlando working on his new album. But friends and family are said to have urged that he stop working and fly to LA to seek treatment.
In 2006, Carter starred in the E! reality show House of Carters with his family, including his older brother, Nick Carter of the Backstreet Boys. Later that year, Aaron appeared on Celebrity Rehab 2 and was treated for substance abuse.