Former f(x) member, Sulli finally spoke up on her showing support for her friend IU rather than her former group's comeback.

"I support f(x) too, hahaha," posted Sulli on her Instagram on Saturday along with the comeback promotion poster of f(x)'s fourth album 4 Walls.

She had previously posted a picture of herself with IU, saying, "You can't not love her. I love you IU! I love all the songs but I love 'Red Queen' the most. I can't help it. You have to love her!," showing support for IU's new album.

But a few f(x) fans  and netizens who saw this seemed uncomfortable at the fact that Sulli is supporting IU and is neglecting f(x), who is also making a comeback in a few days.

f(x) will be releasing their fourth album 4 Walls on October 27.