Demi Lovato at the beach in Rio de Janeiro, Brazil. April 18, 2012. Credit: AKM-GSI

You glow girl!

Demi Lovato hit the beach with pals in Rio de Janeiro Wednesday looking hotter, healthier, and happier than ever.

The radiant "Skyscraper" singer stunned in a sexy, strapless two-piece as she frolicked on the sand with her friends.

After seeking treatment for an eating disorder and cutting in the fall of 2010, Lovato, 19, has been open with her fans about her long road to recovery--and slowly but surely learning to love herself.

In an intimate interview with MTV last month, the former Disney star talked about her ongoing struggles.

"I just remember being 12, 13 and going through these issues alone," Lovato told host SuChin Pak. "I didn't really have…anybody in the public eye to look at and say, 'Well, if she got through this, then so can I.' I'm not fixed. This is a daily battle. But I continue to work my butt off because now I wanna be a legitimate role model."