The 'Maria' hitmaker, who split from his longtime boyfriend Carlos Gonzalez Abella earlier this year, said he wants a baby girl to complete his family, reported People magazine.
"I want daddy's little girl. (Being a parent) enhances everything. I'm only starting... I want more kids!," he said.
Martin reveals his boys -- Valentino and Matteo, both 5, -- are just like him and can even join the music industry in the future.
"They're very musical kids and they are little artists. They're little mini-me's! I don't know what's going to happen in the future, but whatever they choose and whatever they decide to become, I will be right there supporting them," he said.