The girl group opened the show with a live performance of "Ah-Choo".

Afterward, DJ Kim Chang Ryul commented, "I heard that tickets to your summer concert sold out in less than five minutes." He added, "One of our listeners present today will even be flying out from Texas, USA, to attend your upcoming concert. You girls truly are the trendsetters of this generation."

SEE ALSO: Shin Min Ah & Kim Woo Bin couple seen attending Buddha's Birthday celebration

Hearing this, Lovelyz replied, "We didn't expect such a thing to happen. We are so thankful for the support from many fans." Another surprising fact was that an active duty soldier managed to take time off from his military duties in order to see the girls live in the studio!

Lovelyz will be holding their summer concert 'Alwayz' at Seoul's Olympic Park from July 29-30!