Not long ago, LG developed a MCV904 Mini System that removes the voices from any music and lets the users to sing instead. As a result, every common person can become the singer of Justin Bieber or Lady Gaga’s music. It’s a cool system and of course needs a cool idea to take it to more people. So the designers built a small mirror over the real singer’s picture and replaced the customers as the lead singer when they look at the CD. The action lasted for 7 days in 6 CD stores, successfully reaching about 25,000 people while costing only 2 cents per impact.