Hitmaker and former 'The Voice' coach Jessie J has revealed that she's grown a lot throughout her career and now finds it quite tricky to sing one of her most well-known singles with true conviction.

Speaking to Hello! magazine, the beauty explained that her track 'Price Tag' was great in helping her rise to fame, but she struggles with performing it now as she's in such a different place and of a different mindset:

"I'm 25 now. I was 18 when I wrote my first album. However much I love 'Price Tag', I feel a little childish singing it now, and that's okay. Everyone grows, learns, evolves."

Earlier this week (September 2), the songstress hit out at haters that troll her social networking outlets and wrote on Instagram:

"If you DON'T like my music. If you DON'T like my makeup. If you DON'T like my outfits. If you DON'T like the amount of videos and pictures I post. If you DON'T like me. Then stop following and commenting. Go focus on someone you DO like. SIMPLE!"

Watch her music video for 'It's My Party' below: