RECENT STUDIES OF SYSTEMS WITH HOT JUPITERS HAVE SHOWN CASES OF ENHANCED ACTIVITY LIKELY RELATED TO THE INTERACTION OF THE HOST WITH ITS PLANET. WE PROPOSE TO STUDY THE EXTREMELY ECCENTRIC HD 80606 SYSTEM WITH TWO XMM OBSERVATIONS: ONE DURING PERIASTRON AND ONE OUT OF PERIASTRON TO DISCOVER IF SUCH INTERACTIONS BETWEEN THE STAR AND THE PLANET MANIFEST IN X-RAYS AT THE CLOSEST PLANETARY APPROACH. THIS HAS IMPLICATIONS FOR: I) MAGNETIC INTERACTION AND RECONNECT ION OCCURRING BETWEEN STAR AND PLANET II) MASS TRANSFER THAT COULD OCCUR AT THE PERIASTRON AND III) THE OVERALL X-RAY ACTIVITY OF THE HOST STAR AND ITS FEEDBACK ON THE PLANET ITSELF.