The 18-year-old singer-and-actress – who left an unnamed clinic in the US state of Illinois last month after being treated for "emotional and physical issues" – was back in the studio recording music at the  Hollywood Records’ office in Los Angeles yesterday (16.02.11), although it is unclear when she will start shooting her TV show ‘Sonny with a Chance’.
A source told “Demi is recording music, but she’s not back to set yet. She’ll start shooting the show again when she’s ready.”
The Disney star entered rehab voluntarily at the beginning of November 2010 after an incident in which she allegedly punched backing dancer Alex Welch.
In December, Demi settled her dispute with the dancer by giving her a sum of money in compensation.
A friend said at the time: "It's not even close to $100,000. Way, way less than $100,000.
"Alex never expressed dissatisfaction with the settlement. I think she was just ready to just move on. She's happy and moving past the situation and moving forward positively."

Read more: Demi Lovato has completed her stint in rehab