Aside from the highly-anticipated debut stages of F.Cuz and Hyuna, there was another special surprise for the viewers on MBC Music Bank tonight. Key of SHINee and IU joined together in a duet to perform a classic MC Mong song,�Love Letter For You. As Key spitted the rhymes, he handed single-wrapped roses to IU, whose vocal performance hardly strayed from that of the song's original singer. The two demonstrated a good chemistry onstage and seemed to enjoy themselves throughout. http://www.youtube.com/watch?v=9GaH1LaArcs Aside from her singing abilities, IU is quite a brave soul. Despite the disapproving response she received from�Yoseob fangirls who raided�Cyworld and eventually shut it down after her collaboration with the�BEAST blondie, IU still pulled through the special stage with Key. She may sing about marshmallows, but her heart sure isn't soft as one. Perhaps SHINee fangirls will have been more understanding and just enjoyed the duo's performance. On second thought, it's a long shot...