On Tuesday, Demi Lovato was taken to a Los Angeles hospital after suffering from an apparent overdose. The singer has been open about her long struggle with substance abuse, including cocaine and Oxycontin addictions, but had been clean for six years. However, back in June she released a single called "Sober," where she disclosed her relapse.

"Mama, I’m so sorry I’m not sober anymore/And daddy please forgive me for the drinks spilled on the floor," she sings over somber piano. "And I’m sorry for the fans I lost who watched me fall again/I wanna be a role model, but I’m only human." Lovato finished the song by pledging to get help: "I’m sorry that I’m here again/I promise I’ll get help/It wasn’t my intention/I’m sorry to myself."

Now TMZ is reporting Lovato's team saw the 25-year-old going through a rough time and tried to intervene. “We're told they offered assistance to get her back to sobriety. The plan was to urge her into a rehab program,” the report reads. Lovato turned down the help.

Another source told ET that Lovato’s downturn began in the spring. "She pushed away everyone that tried to call her out or help her including sober coaches, friends and management," the source said. "The trouble is that Demi has been more successful than ever, and everyone wants a piece. It becomes this perfect storm. She pushed away all the people who are there to protect."

The singer was booked with performances, appearances, working on a new album and documenting her life for a follow up project to her YouTube documentary, Simply Complicated. "The more stressed out and more she was overworked, the more she wants to escape and do the drugs and not stay sober,” the source continued. “No one was looking out for Demi’s best interests anymore. She pushed away everyone."

TMZ speculates part of the relapse could involve Lovato’s decision to part ways with her longtime manager Phil McIntyre. The tabloid also first reported the pop star had overdosed on heroin, but a source close to the singer revealed that is not the case, though they won’t disclose what drug she was using at the time of the incident.

Lovato has been recovering with her family and is in “stable” condition. “Demi is awake and with her family who want to express thanks to everyone for the love, prayers, and support,” Lovato’s rep told Variety in a statement. “Some of the information being reported is incorrect and they respectfully ask for privacy and not speculation as her health and recovery is the most important thing right now.”