It was such a heart-warming scene to see SM's artists singing Christmas song together!

On today's Music Bank aired earlier,f(x),SHINee and SNSD had an opportunity to sing "Jingle Bell Rock" on the show.

19 of them did a very good job singing the song,it was such an amazing scene to see 19 good-looking human beings singing together.

Of course they also showed us the close relationships between members of SM Family,The most obvious pair is the Jung Sisters pair,they stood side by side when singing the song,Luna and Tae Yeon are also like sisters too judging from their height and singing skills!!

Watch the close relationship between SM artists!