Double S 301 talked about celebrating their 11th anniversary recently while they guested on 'Cultwo Show' this June 9.

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Heo Young Saeng said, "Yesterday was our 11th anniversary if you add together SS501 and Double S 301.  We are grateful that fans would love someone like us for 11 years. We're even more grateful because that is not a short time."

On top of that, many overseas fans visited the studio when Double S 301 was on 'Cultwo Show,' proving their lasting popularity.