Selena Gomez is eager to return to work following her stint in rehab.

The 21-year-old star spent two weeks at The Meadows recovery centre in Arizona last month, but she's since been attending casting calls in a bid to move past her troubles.

A source told E! News that the brunette beauty is doing ''so well'' now and is concentrating on reading scripts so she can find another acting project.

The 'Come & Get It' hitmaker was spotted leaving an audition on Monday (02.03.14) in Studio City, California, clutching a script and sporting a big smile.

However, the source said Selena is yet to sign on to any projects.

The singer decided to seek treatment after her family expressed concern when they saw pictures of her with ex-boyfriend Justin Bieber on a Segway early last month.

The source believes the pair's on/off relationship put a massive strain on her emotionally, but she is doing much better after taking time away to clear her head.

Meanwhile, Selena - who reportedly ''regularly'' smoked marijuana with Justin - was due to tour Australia this month but cancelled the shows in order to ''spend time on [herself].''

She is yet to announce whether she'll reschedule the gigs.