Credit: Selena Gomez on Instagram Photo: Demi Lovato and Selena Gomez Share Sweet Selfie

News broke yesterday of Selena Gomez’s short two-week stay in rehab last month — not for substance abuse, but because the poor girl just needed to chill out. Sources close to the singer say that she “needed to clear her head” … of Justin Bieber, we’re hoping.

Meanwhile, Selena’s BFF Demi Lovato was on hand Wednesday to offer her support to her longtime pal. “Weakness is living in denial,” Demi tweeted. “Only the strongest people ask for help.”

And Demi’s a huge proponent of asking for help — after her own October 2010 rehab stay for addiction, self-harm, and an eating disorder, she’s been able to handle her problems a lot better and has dedicated herself to spreading awareness about mental disorders and substance abuse and how important it is to seek treatment.

Finding out that Selena spent time in rehab was shocking, but it totally explains why she had to cancel the Australian leg of her “Stars Dance” tour. At the time, Selena said she was taking a short vacay from work to “spend some time on myself in order to be the best person I can be.”

If you’re worried about Selena, though, don’t be — those closest to the “Come and Get It” singer promise she’s doing much better now.

“She’s never been better,” the source confirms. “She’s strong and great.”

Source: Twitter