Madonna has agreed to let Guy Ritchie care for their children for the summer.

The '4 Minutes' singer is to entrust Rocco, eight, and adopted David, four, to the director when she embarks on her European tour in June.

Guy is delighted Madonna, who also has a 12 year-old daughter, Lourdes, from a previous relationship, is letting him have the kids, a decision which comes just weeks after the singer won full custody of the boys.

A source told Britain s The Sun newspaper: "Guy absolutely dotes on his children and can t wait to have them for a whole three months. He is surprised and pleased that Madonna is being so generous, as she has at times been impossible.

"Madonna will be travelling a lot and agreed it makes sense for them to stay with Guy rather than constantly be uprooted."

Guy, 40, is now frantically renovating his mansion in Wiltshire, South West England, and building a new indoor pool in preparation for the boys.

The source added: "He'll make it a summer they won't forget."

Meanwhile, Madonna is busy preparing for the next step in her fight to adopt four-year-old Malawian orphan Mercy James.

The 50-year-old star's adoption bid was rejected earlier this month because she had not lived in the African nation for 18 months, as is required by law.

She will appeal the ruling on Monday (04.05.09) but will meet unexpected opposition in the form of Mercy's father James Kambewa, 24, who is fighting for full custody of his daughter, who he has never met.

He said: "She is my daughter. Madonna has millions but that doesn't make her a good mother. Parental love is worth more than money. She doesn't portray good morals. How can a woman of 50 dance almost naked on stage?"