The Burning Up hitmakers confirmed their decision to disband on Tuesday (29Oct13), after a scrapped tour and a "deep rift" between the three brothers ultimately led to the demise of the group.
And shortly after the band announced its axed tour, speculation swirled that Joe was headed for rehab - when he was frequently seen with addiction specialist Mike Bayar, who was one of the driving forces behind Demi Lovato's recovery.
However the 24 year old tells People magazine that not only is talk of a drug problem not true, but it was certainly not a reason for the siblings to end their career.
He exclaims, "It's ridiculous! We're not saying anything for two or three weeks and I'm a drug addict!"
Joe found it even more troublesome when his model girlfriend, Blanda Eggenschwiler, was also blamed for his reported addiction.
He adds, "It's obviously not true. I've never touched heroin in my life. Either has my girlfriend. It's hilarious to me, but also frustrating as well. It p**sed me off when it's about my girl...
"I was walking down the street and people are asking me if they can give me a hug and how rehab is. I'm like, you tell me because I've never been."