Mariah Carey is invited to give a lecture in Oxford in the footsteps of Michael Jackson, the Dalai Lama, Sir Winston Churchill and McFly, Mariah Carey was invited to give a lecture at the University of Oxford. THE american diva, for 43 years, received the invitation to appear before the Oxford Union while it is in the UK promoting his still-without-name new album this summer.  A spokesman for the star until confirmed the invitation, adding: "we are seeking to know what they want to learn from it."