Selena Gomez, the 21-year-old singer, actress and ex-girlfriend of Justin Bieber, spent two weeks in a rehab facility in January.

Selena Gomez's Rehab Stint

Gomez checked herself into Dawn at the Meadows facility in Arizona on Jan. 5, confirmed People. Although the facility’s website describes Dawn at the Meadows as an “inpatient treatment program for emerging adults ages 18-26 who struggle with emotional trauma, addiction, or dual diagnosis concerns,” Gomez’s rep has claimed she was not struggling with drug or alcohol addiction.

“Selena voluntarily spent time at Meadows but not for substance abuse," the rep said in a statement.

Gomez's Partying To Blame?

Some who claim to know Gomez personally have told a different story, which includes booze, pot and prescription pills. “With fame came a partying lifestyle,” an insider told RadarOnline, claiming that Gomez experimented with drugs like Ambien and Xanax.

“Her friends and family became increasingly worried that there might be a serious problem with Selena,” another source told the gossip site. “Particularly, her parents. The partying was, at times, wild. They wanted to help her — and they very much encouraged her to go to rehab. Others very close to her also urged her to seek professional help.”

When Gomez canceled the Australian leg of her tour in December, she released a statement explaining that she needed to take time to work on herself. "It has become clear to me and those close to me that after many years putting my work first, I need to spend some time on myself in order to be the best person I can be,” she said.

Upon the tour cancellation, rumors swirled about the real reason behind the decision. Drug or alcohol abuse were considered, as were a mental breakdown and a broken heart from her split from Bieber. It was also suggested that the former Disney star had long suffered from auto-immune disease Lupus.

– Chelsea Regan

Get Uinterview's FREE iPhone App For Daily News Updates here.

Get the FREE Uinterview iPad app here and watch our videos anywhere.

For More Selena Gomez News:

_{Austin Mahone Says He And Selena Gomez Are 'Just Friends'}

_{Selena Gomez Opens Up About Rekindled Friendship With Demi Lovato}

_{Selena Gomez Reportedly Battling Lupus}

_{Selena Gomez Walks Off Stage At KISS FM Jingle Ball}