Madonna has turned to Adele for help putting together a "grown up" album of ballads, the Mail Online reports:

Queen of reinvention Madge has asked the 25-year-old songstress to help her, promising in return to write a song for Adele's next record. 'They have met in London and plan a writing session to produce a track for each other's new albums,' says a source close to 55-year-old Madonna.