Popular gagman and 1N2D driver, Lee Su Geun will soon be releasing his 2nd digital single Happy Song. His new title track Happy Song was composed by Park Hae Woon who had done up tunes in the past for COOL and DJ DOC. The song will be a mixture of styles of traditional folk songs from Norway, Sweden, with some Korean flavor added to it. This will be Lee Su Geun's 2nd digital single after his debut single, Let's Keep Going Until The End which featured fellow 1N2D member, Eun Ji Won in February 2009. In addition, Lee Su Geun will also be appearing on KBS2TV Music Bank this Friday, 7th August for his Happy Song comeback stage. His first digital single MV again. credit: sogoodla2 Photos of Lee Su Geun's son celebrating his birthday as a one year old were revealed recently also. The busy man is expecting his 2nd child at the end of the year.