Rookie singers John Park and Ailee made quite the impression on legendary diva, Patti Kim.

The latest episode of KBS 2TV‘s ‘Immortal Song 2‘ featured a special on Patti Kim.

It was the first time the two rookie singers appeared on the show, and expectations for their performance were extremely high ahead of the show’s airing.

John belted out a new jazzy version of Patti Kim’s song “I Can’t Forget” from 1978, and as soon as he stepped on stage, Patti Kim along with all the female contestants backstage immediately began smiling with delight. Ailee also performed Patti Kim’s song “Light and Shadow” from 1967.

The song was a good choice, bringing out John’s unique vocals and Patti Kim sang the praises of John Park who was nervous for his first appearance. “Seeing her smile from on stage made me feel good,” he said.

Patti Kim also sang her praises for Ailee saying that she will be the next great singer.

This ‘Immortal Song 2′ episode was Patti Kim’s first television guest-appearance after her official retirement.

Check out John Park, Ailee, and some of the other performances from today’s show below!

John Park:

Ailee:

Lyn:

Lim Tae Kyung:

Ali (Winner) :

K.Will:

Sung Hoon:

Preview for next week:

Jay Park & Taemin:

Source & Image: MyDaily + Nate