This Star Wars parody was created by the Piano Guys. It started out as a joke when the editors decided to edit light sabers to the their cello bows in a video. The fans loved it, and since the Piano Guys love Star Wars too, they decided to create this parody. It took them 6 months to create it. Their website says:
"It took more than 7,000 frames, 72 audio tracks, 24 hours of filming through the night in front of a green screen, the most props and costumes we’ve ever used, several broken bows and strings, and over 1,000 hours of editing and rendering — we felt like we had taken on the entire EMPIRE! We are grateful to those behind the green screen — behind the editing bay — behind all the cool effects. Every single frame had to be edited in order to make the light sabers work (a total of over 7,000 frames)!"
"It took more than 7,000 frames, 72 audio tracks, 24 hours of filming through the night in front of a green screen, the most props and costumes we’ve ever used, several broken bows and strings, and over 1,000 hours of editing and rendering — we felt like we had taken on the entire EMPIRE! We are grateful to those behind the green screen — behind the editing bay — behind all the cool effects. Every single frame had to be edited in order to make the light sabers work (a total of over 7,000 frames)!"