K.Will and IU prepared surprise performance for their great mentor Patty Kim.

In SBS 'Healing Camp' aired on May 7, featured Patty Kim who has recently announced her retirement to appear and share her life story. As she was sharing her stories, singers K.Will and IU made a surprise appearance to sing for her.

On this day, IU sang Patty’s 'I Can't Live Without You' and K.Will sang 'The Man who Left Autumn Behind.’ Patty Kim smiled brightly at the surprise performance. She did not hold back her compliments as she held both of her thumbs up with the biggest smile.

IU shared after finishing her performance, "I heard you couldn't eat a lot of sweets and snacks because of weight control during your singer days so I brought a lot of snacks," giving Patty Kim a box of gifts.