Sweden chose their entrants, The Ark, with the song 'The Worrying Kind' for the Eurovision Song Contest 2007. Sweden used a national final format for Melodifestivalen 2007, which consisted of four semi-finals on February 3, February 10, February 17, February 24; a second chance round on March 3; and the final which took place on March 10. The method of selection remained the same as previous years with 4 semi-finals consisting of 8 songs each, with the 2 top placed entries securing spots for the final and the 3rd and 4th place entries earning spots in the Second Chance. The winner was chosen by regional juries (50%) and televoting (50%). The Second Chance round was live this year with competitors going up against each other for the last two spots in the final, facing off in a bracket-based tournament.

Some familiar faces returned to Melodifestivalen this year, among them Eurovision 1989 representative Tommy Nilsson, 1966 representative Svante Thuresson, 2003 representative Jessica Andersson, and 1996 representative Nanne Grönvall. Andreas Lundstedt also went to Eurovision in 2006 for Switzerland.

Sweden were considered bookmakers' favorites before the contest, but finished in a disappointing 18th place out of 24. They received 51 points, of which 42 came from their Scandinavian neighbours.

Points awarded in the semi-final:

Points awarded in the final:

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