London: Pop singer Madonna is said to be obsessed with Lady GaGa and is going crazy to get her on board for her latest world tour.
The ‘Material Girl’ hitmaker wants the singer to open for her next year.
"Madonna is absolutely obsessed with Gaga,” News of The World quoted a source as saying.
"She thinks she is the most cutting-edge star to come out of pop in ages and desperately wants to work with her.
"Basically Gaga can name her price," the source added.
Madonna has only just finished her Sticky ``N`` Sweet tour but is already locked into another deal with promoters, and plans are in full swing.