Check out Amber and Luna's pictures with U-Kiss' Kevin and Friends

Showing their support for Amber's solo debut, here are Luna, U-KISS' Kevin, and their other friends who came to watch this week's Music Core.

Luna didn't just visit but she also performed with Amber on her stage, you can watch their 'Shake that Brass' performance here, but before that, you should check out their photos first~

♥ Watch Amber and Luna perform 'Shake that Brass' here

♥ More of f(x) Amber's updates here

Credits:laserzz
Amber's Instagram