On the SBS radio program 'Kim Chang Ryul's Old School' aired on April 29, 15&'s Park Ji Min and Baek Ye Rin talked about the advantages of working together.
Park Ji Min stated, "I'm a lot less nervous on stage because there are two of us. We even encourage each other by exchanging glances. I still get very nervous for live broadcasts, but I get a bit less nervous when I go up on stage."
Baek Ye Rin then mentioned, "It's different for each stage, but I'm much less nervous on big stages. I think I'm more nervous on small stages because the fans are closer."
Park Si Hwan gave his praise to the duo saying: "This is really nice to see. I wanted to debut as part of a group too, so I'm envious."
15& is a duo composed by JYP Entertainment and their name means a combination of their ages and the ‘and’ means that they can have success into the future. Park Ji Min is a product of the program, "K-pop Star", while, Baek Ye Rin became popular through her guesting in "Star King."