Showbiz
The pop superstar has a 13-year-old daughter, Lourdes, from her relationship with Carlos Leon, and Rocco, 9, with ex-husband Guy Ritchie.
Madonna and Ritchie travelled to the African country of Malawi in 2006 to adopt son David Banda, and after their divorce in 2008, she returned to take home Mercy James this year.
Asked whether she would consider adopting another child, the singer replied: "Never say never. I have four children now and I'd like to think I'm a good mother."
During the interview with GMTV, Madonna also admitted that she misses life in London, having moved back to her native New York after splitting from Ritchie.
She added: "I miss being able to walk around the neighbourhood. It's more mellow, laid-back and relaxed [in London] than it is in Manhattan."
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