"Roots", a canned coffee brand in Japan, is dedicated to relieving daily stress of Japanese salaried workers. On the “Sing with Roots” website, people can input their daily complaints and a singing voice is automatically generated for them like Karaoke. The website can sing any sentences well. People feel refreshed to hear the song.The web site recorded 570,000 visits and over 120,000 commercial were created in two months. This translates to one new song every 40 seconds. The campaign generated a great deal of word-of-mouth communication opportunities. As a result, 470 million cans of Roots were sold in one year.