Neither of the presenters is a stranger to the Eurovision stage. Zelmerlöw won the song contest for Sweden in May of this year with the song "Heroes", and Mede hosted Eurovision in 2013, when it was held in Malmö, after Sweden's Loreen won for "Euphoria" the year before.
Zelmerlöw told Radio Sweden that part of the reason he said yes to the job was because of the skills Mede demonstrated in 2013. "Our chemistry is perfect," he said.
"We're just going to try to lift each other up and make each other better," Zelmerlöw said, adding, "I'll try to learn some humor and comedy from Petra, and hopefully, I can teach her some dance steps."
"It's the most fun you can have in your life," Mede told Radio Sweden, in an answer to why she agreed to present the song contest for a second time. "It's about joy and laughter and focusing on fun things for once. We are living in tough times, and it's like being on an island - in this little bubble, and we need to be in those bubbles every now and then, when life's too tough."
Motivating the choice of Mede and Zelmerlöw as presenters, Martin Österdahl, executive producer of Eurovision 2016, told Radio Sweden, "We had a unique opportunity to present two super-professional hosts ... and that is Petra and Måns, and that felt like an irresistible opportunity for us."
"What Europe doesn't know is that our defending champ is also one of our best male TV hosts, and that's going to surprise a lot of people, I think," said Österdahl. Zelmerlöw hosted a popular summertime TV show, Allsång på Skansen, in Sweden, from 2011 to 2013.
This year's Eurovision final will be held in exactly five months at Globen, in Stockholm.