American country singer Miranda Lambert says now that she is 30, she feels more "settled" and at peace.

"That attitude (angry attitude) brought me here and got me where I am. But that was me in my 20s. The chip on my shoulder is gone. At some point, you calm down. I'm happy. I'm more settled. I've put down roots," Lambert told People Country magazine, reports femalefirst.co.uk.

"I feel like people have accepted me for who I am, with all the craziness, loudness and fire," she added.

She is married to singer Blake Shelton.