US pop star Madonna plants a tree at a ground breaking ceremony for her Raising Malawi Academy for Girls in Malawi, Monday, Oct. 26, 2009. Madonna who is funding the building of the school was the guest of honour at the function. The 51-year-old celebrity arrived in the impoverished southern African country on Sunday. She was accompanied by her four children _ daughters Lourdes and Mercy, and sons Rocco and David.