Måns Petter Albert Sahlén Zelmerlöw is a Swedish pop singer and television presenter. He took part in Idol 2005, eventually finishing fifth, won the first season of Let's Dance, and scored a hit with his 2007 song "Cara Mia", which was his entry in that year's Melodifestivalen. Zelmerlöw was the host of Allsång på Skansen from 2011 to 2013. He participated in Melodifestivalen in 2007, 2009 and won in 2015. Zelmerlöw represented Sweden in the Eurovision Song Contest 2015 with the song "Heroes", winning the contest with 365 points. Zelmerlöw and Petra Mede co-hosted the Eurovision Song Contest 2016 held in Stockholm.

Allsång på Skansen is a Swedish show held at Skansen, Stockholm, every summer on Tuesdays between 8pm and 9pm. The audience is encouraged to sing along with musical guest stars to well-known Swedish and international songs. The show started in 1935 on a small scale; about 50 people in the audience. Today, about 10,000–25,500 people come to each performance.