We didn't quite pass the test in Copenhagen because we couldn't get an agreement on a long-term treaty - in other words everybody feeling bound in to a common strategy that would last for ten years.
Even though writing the sacred words is so closely bound up with the Islamic faith, she says she experiences her art as liberating and profoundly universal.
Jessie J burst out of a giant safe to deliver her song Price Tag and at one point, a streaker bound on to the stage and exchanged words with US actress Hayden Panettiere.