The two rookie idols from Cube Entertainment with less than 1 year of training gained immense popularity and success after appearing on 'Produce 101' season 2. 

Lai Kuan Lin and Yu Seon Ho's sudden jump to stardom was discussed by their sunbae group Pentagon at the showcase for the 4th mini album 'DEMO_01' on September 6. 

SEE ALSO: Why Song Min Ho can't re-enlist as active duty soldier

Yeo One commented, "We tend to run into one another often since we're under the same label. I want to cheer on for them. Lai Kuan Lin and Yu Seon Ho are wonderful dongsaengs. Seon Ho, Kuan Lin, and Pentagon will work hard and become good Cube Entertainment family."

Leader Hui also shared a comment, and said, "I saw Kuan Lin while recording with Wanna One and it felt new. I also felt proud that he was a trainee but now is working hard and has really become a singer by being a member of a popular group Wanna One. Seon Ho has grown a lot as well so it was really touching."

Currently, Lai Kuan Lin is busily promoting as the member of Wanna One. Yu Seon Ho is continuously appearing on variety shows, CFs, MVs, and more. Meanwhile, Pentagon made their comeback with ''Like This''.