Never heard of it. Watched a YouTube video highlighting some (maybe all) of the songs... all of them seemed like very low production quality. Not the music, but the videos themselves. Is this a competition between famous artists, or are these up-and-coming artists?
Eurovision is not a music video competition. Since all of the artists have to sing live at the stage, the music video is irrelevant.
The artists usually are either not well known at all or relatively famous only in their respective country.
Most people that watch the show have no idea who these people are, so it's more of a song contest than a popularity contest.