Madonna is reportedly trying for a second baby with husband Guy Ritchie - at the age of 47. The pop diva - who has a five-year-old son, Rocco, with the filmmaker - allegedly hopes another child will help strengthen the couple's reportedly ailing five-year marriage.

The sexy singer - who also has a nine-year-old daughter, Lourdes, from a previous relationship - is said to have agreed to try for a baby after Guy told her he wanted their son to have a little brother or sister. A source is quoted in Daily Star newspaper as saying: "They are more in love than ever and having another baby will be their first priority.

"Although Madonna has a world tour coming up, she knows she is fit enough to be able to perform while pregnant."

Madonna and Guy have been at the center of weeks of speculation their relationship is in trouble. The pair's problems allegedly started after the star began spending more and more time with record producer Stuart Price - who masterminded her Confessions On A Dancefloor (Ringtones) album.

Sources close to the couple claimed the pop babe's "special working relationship" with Stuart was driving her and Guy apart.