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Current SS301 member Kim Kyu Jong relayed, "I think the feel is a little different from when I'm singing in SS501 than in SS301. When we're performing SS501 songs, there's definitely a certain emptiness to it because we don't have all the members, and it feels like it just needs five. That's why we look for songs like 'Pain' and 'Ah-Ha', to fit what we can show as three members." SS501's Kim Hyun Joong and Park Jung Min are currently serving in the military.

The group also thanked their fans for sticking with them these past 11 years, stating, "Because our fans have grown older just as we've grown older, they have very good ideas these days. Some of our fans look after us like a parent looking after their child. We're very thankful." 

SS301 will be releasing their 11th anniversary special album 'ESTRENO' this June 9!