They are not allowed to use their participation for commercial purposes, project manager Anders Wistbacka tells Aftonbladet.
According to SVT's rules, artists in Melodifestivalen are not allowed to make advertisements that are in any way connected to their participation in the competition.
The rules apply regardless of whether the post is published by the artist or by a company, Anders Wistbacka tells the newspaper.
After SVT contacted the artists, the posts were taken down.
