The 'Girlfriend' singer almost quit the music industry when her grandmother passed away in 2006 but has learned to channel her emotions use them to create a "new sound" for her latest LP 'The Element of Freedom'.
She explained: "I found more freedom. Before, I thought I could only show the strong side of me. Now there's a mixture of strong and delicate. A new sound, a new emotion. That's a lot of who I am right now.
"In the past, I was locking myself in the studio because I thought it was the only way to create music. This was a more casual way to do it.
"The tour will take me all over the world for a year and I can't wait to play these songs."
In 2006, the 28-year-old songstress almost suffered a breakdown after her grandmother passed away. She took a three-week holiday in Egypt to grieve for her loss before she released 'As I Am' a year later.
She explained to Britain's Daily Star newspaper: "With the last album, I was really trying to find myself and I was feeling extremely overworked. I was also starting to understand that I was dealing with certain people in business that were not really for me and they all had their intentions and thoughts. I was snappy, I was nasty, I was mean, losing my grandmother during that time as well. Everything felt like it could all just tumble down at once."