Bruno Mars to join Beyoncé & Coldplay at Super Bowl...

During an interview with 'CBS Sunday Morning,' Coldplay frontman Chris Martin hinted that Bruno Mars will join his band on stage during Sunday’s halftime Super Bowl show.
Beyoncé and Bruno Mars have already headlined their own Super Bowl shows and are now doing it for the SECOND time each. I think a Coldplay performance alone would be snoozefest central. It would be like eating unseasoned steak with sea salt only. Without performers like Beyoncé and Bruno, this Super Bowl would have been the most boring Super Bowl halftime in a long time.
Thoughts?