Winners of the Eurovision Song Contest

As it's common for Eurovision songs to have more than one recorded version (even when performed by the same artist), it is preferable for this series to include those studio recordings that sound the closest to what was performed live (choice of language, lyrics, arrangements of the instrumental backing track, etc.) on the Grand Finals.
Although exceptions may not be uncommon, a good point of reference are the official annual compilations that are being released since 1999, as well 'all-time' compilations that were licenced by the EBU such as those released on the 50th and 60th anniversaries.