MUMBAI: Singer Britney Spears has "changed dramatically" after discovering meditation.

According to a source, the 33-year-old has been using a special application for 20 minutes every day to learn to relax and banish her anxiety, and even attributes her slender figure to her new outlook on life, reports femalefirst.co.uk.

“Britney has always struggled with anxiety. Learning to meditate, relax her mind and body and have happy thoughts has made her change dramatically,” Closer magazine quoted the source as saying.

"She lives in the moment more and, instead of moaning about working out, she looks forward to it, revealing the endorphins make her think happy thoughts,” the source added.

After her troubled past, the mother of two have been were relaxed over years and has focused on her career and her kids. Recently, Spears and her kids- Jayden James, 8, and Sean Preston, 8, enjoyed their time backstage with DJ Skrillex.

‘Oops!... I Did It Again’ singer has also released a single 'Pretty Girls', featuring rapper Iggy Azalea.