Bobby Brown visits 'Sway in the Morning' on Eminem's Shade 45 Channel in the SiriusXM Studio on May 29, 2012 in New York City. Credit: Andrew H. Walker/Getty Images

Singer Bobby Brown has returned to rehab.

Alicia Etheredge, Brown's wife of nearly two months, confirmed to Radar Online that her husband is undergoing rehab. "He's doing great," she said of his response to the treatment.

Brown, who was married to the late Whitney Houston from 1992 to 2007, has had a long battle with alcohol addiction.

According to Radar Online, the 43-year-old R&B singer is undergoing treatment for addiction issues, but Etheredge would not confirm whether it's for "alcohol addiction."

After Houston passed away at the age of 48 in February 2012, the "My Prerogative" spoke out against accusations that he led his ex-wife down the self-destructive path of drug and alcohol abuse that ultimately led to her early demise.

"I think if anyone ever knew us, if anybody ever spent time around us . . . they would know how we felt about each other. They would know how happy we were together," he told TODAY in April 2012. And Brown also claimed that their reality show, Being Bobby Brown, gave them a "wakeup" call. "We [were] able to see that our drug use had affected our relationship, had affected the love that we felt for each other."

Brown and Houston shared a daughter, Bobbi Kristina, 19. He married Etheredge, his manager, in Hawaii in June after getting engaged in May 2010. The couple have one child together, Cassius, 3, and Brown also is a father to Landon, 23, La'Princia, 22, and Bobby Jr., 19, from previous relationships.