SIG was a pop band from Raisio, Finland, formed in 1978. The lead singer of the band was Matti Inkinen. The breakthrough song SIG was "Tiina menee naimisiin" (Tiina is getting married). The most famous songs from SIG are “Vuosisadan rakkaustarina“ (English: The lovestory of the century) and “Hyvää syntymäpäivää“ (English: Happy birthday). Original SIG broke down in 1987. The comeback album of SIG was "Suomalainen pop-levy" (A Finnish Pop Album). The lead singer of SIG Matti Inkinen died in 2009.