On the upcoming episodes of KBS Music Bank and SBS Inkigayo, SNSD/Girls' Generation's Seohyun will be performing alongside fellow SM family artist, TRAX! Now, Seohyun won't actually be singing but will instead be playing the piano for the rock band. It's been long known that Seohyun has magic fingers when it comes to the piano and it looks like we'll finally be able to get a taste what she can do. TRAX will be performing their title track Let You Go with Seohyun on the piano at this week's Music Bank on the 5th and on Inkigayo on the 7th!