Seohyun had stage with Kyuhyun singing Beautiful (Carly Rae Jepsen ft Justin Bieber ------>http://www.youtube.com/watch?v=KTx-uNAZV-U&feature=youtu.be 
and lyric ----> http://www.sing365.com/music/lyric.nsf/Beautiful-lyrics-Carly-Rae-Jepsen/9A884925ADDC0C3A48257A650000BE10 )

Seohyun was singing Beautiful playing guitar, then Kyu joined her. They were on benches. They were holding hands, and Kyu kneeled and gave her a rose.