Nation's little sister IU caught the attention by expressing her grateful heart to MC Lee Seung Gi on December 20ths episode of SBS TV 'Strong Heart-Christmas Special'.

On this day's broadcast IU surprised everyone by revealing "Recently I received a surprise gift from Seungi Oppa". To which Lee Seung Gi heightened the curiosity by commenting shyly "I don't know if you liked it. I picked it out myself."

Why Lee Seung Gi gave IU a gift, and what it is will be revealed in details on December 20th episode of 'Strong Heart-Christmas Special.'

Also, IU catch the attention by revealing her idea of romantic date "I just turned 20, and there's a date that I've been really wanting to go on"

On the other hand, besides IU, Kim Hyun Joo, Lee Jung Jin, Im Jung Eun, Ryu Tae Jun, Im Baek Chun, and Byun Gi Soo appeared on the show to  talk about their memories of Christmas and honest stories of their love life.