Madonna wants the media to leave Britney Spears alone.

"They need to step off," she told the "Yo on E!" satellite radio show. "For real ... Let's go save her."

Madonna, 49, said her daughter, Lourdes, 11, feels the same way.

"She knows Britney, (but) she doesn't really watch TV or read gossip stuff," the pop star said in the interview. "I think she sort of gets the drift of what's going on, and I think she feels very protective of Britney."

Madonna and husband Guy Ritchie have a son, Rocco, 7, and are raising a Malawian boy they want to adopt.

"He's the life of the party," she said of David, who she brought home from Africa in 2006. "He loves music, he's an amazing dancer. ... He's a character."

She said caring for David is no different from her raising her biological children: "I thought it was gonna be, but it feels the same to tell you the truth."

As for speculation that her marriage is on the rocks, Madonna said: "It is ridiculous. ... I don't pay much attention to it."

The singer's spokeswoman Liz Rosenberg recently dismissed media reports that the Ritchies have split up, saying they "remain happily married." Rosenberg said that Madonna and filmmaker Ritchie, 39, were "joyfully back together at home in London" after living in separate countries for work purposes.

Madonna, whose new album "Hard Candy" arrives April 29, told "Yo on E!" that she plans to spend the summer in New York, and that she might kick off a tour this fall.

Meanwhile, in the new issue of Vanity Fair magazine, the megastar poses in a corset and knee-high boots, showing off her still-toned physique.

"You have to get to a point where you care as little about getting smoke blown up you're a-- as you do when you become a whipping boy in the press, because ultimately they both add up to s---," she says in the interview.

Click here to see photos and to read more in Vanity Fair.