Several pictures of Girl’s Generation members attending the concert of SISTAR have been revealed on online community boards and garnered much attention.

In the photos, Girls’ Generation’s YoonA, Hyoyeon and Sunny are clearly visible in their seats to watch SISTAR’s “Femme Fatale” first solo concert. The three members are known to be really good friends with SISTAR especially Hyoyeon and Sunny who starred in KBS “Invincible Youth 2” with SISTAR’s Bora.

Meanwhile, SISTAR held their first exclusive concert hosted at Olympic Hall in Seoul on September 15 which gathered some 8,000 fans.