Britney says she's doing the best she can

Britney Spears was on Ryan Seacrest's morning radio show Wednesday to talk about her new album - and her life as a mom. Asked if she's been upset with recent coverage of her battle with Kevin Federline over their children, and criticism of her as a mother, Spears answered, "People say what they want and do what they do. It's sad how people...how cruel our world can be. But at the end of the day you gotta know in your heart that you are doing the best you can." When Seacrest asked if she is doing her best with her sons, Spears said, "Oh god, yeah, yeah." The singer was on the air to promote her new album Blackout, which hit stores Tuesday. She said her big day "was kind of laidback, really," and that she didn't celebrate. "No, we watched movies, that's about it." As for her favorite track on the album, she said, "I really like 'Heaven on Earth.' I think it's a cool track. It's kind of different from all the other songs." When asked if she was having a romance with Dallas Cowboys quarterback Tony Romo, Spears, who was on speakerphone with her pals Alli Sims and Sam Lufti, answered, "Who?"

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