Pop superstar Ke$ha paired with Lightwave International to debut her latest single, “C’Mon,” with a full-color laser display on The X Factor’s top 6 results show on Dec 6, 2012, on FOX. The highlight of the performance saw Ke$ha playing Lightwave’s laser harp synthesizer live on national television.
The laser harp is a real instrument that works by interacting with beams of laser light which in turn trigger synthesized sounds. The instrument is played just as a real harp, with sensors reading the position of the performer’s hands and sending data back to the synthesizer. Not only does “breaking” the beam produce notes, but sliding the hand along the beam will also change the sound.