Primadonna by Harajuku Nation ft Gabi King (Undertale Cosplay Video) Recorded especially for our second dedicated Undertale CMV, Primadonna is a cover of Marina and the Diamonds’ original hit. Featuring singer and actress Gabi King as Mettaton, the song certainly fits well with the character, especially after changing the lyrics from ‘girl’ to ‘droid’! Undertale fan or not, it’s definitely worth seeing Gabi’s performance, along with three other extremely talented cosplayers, in the video! You can listen to the track on Spotify now! The song is also on Amazon and Google Play!