It's always nice to catch up on celebrity friendships.�G.NA and f(x)'s Amber got together recently and took some adorable�selcas!

Amber shared on her Twitter,

OOPS! Gina and i are 'black & white' instagram.com/p/XrQgWKt-pF/

� Amber J. Liu (@llama_ajol) April 4, 2013

G.NA retweeted the friendly snapshot, commenting, "It's always nice to see you�amber baby!?," making fans smile at their close friendship.

Fans commented, "You two are adorable,"�"And apparently grey too," and more.