Singer Shakira, who has two sons, says that it is not easy to be a mother. She calls it the most difficult thing she has ever done in life.

During Fisher Price’s Happy Factor Panel here, which focused on the challenges of early motherhood, Shakira shared that she is all the time looking for help and information online, researching and reading on motherhood and tasks, reports people.com.

I’m one of those tiger moms, who is all the time looking for help and information online and researching and reading.

It’s not easy to be a mother, the singer said Thursday in New York City during the Fisher Price’s Happy Factor Panel, which focused on the challenges of early motherhood, she said.

It is one of the most difficult things I’ve done in my life, I’ve been on the most challenging stages performing in front of really demanding audiences and I’ve been meeting with world leaders who sometimes make you a little bit apprehensive, but nothing has made me so self-conscious as being a mom, she added.

The "Waka Waka" hitmaker also expressed that every day she wonders if she is doing the right thing.

I just want to improve in the job, the hardest job on earth.”

Shakira also developed a line of toys and an app with Fisher Price to help moms educate and nurture their children.