So,f(x) is coming back on the 29th of July and they've been releasing teaser images...But some are quite upset with the fact that Kai's in it. 

At first I didn't believe it was Kai because others said it was Hyobin[an SM trainee] but then I found the image of Kai between Sulli and Krystal...

f(x) homepage background

1st teaser image - Krystal

Judging from Kai's shirt here....then he is the person in Krystal's teaser images,right?? 

Check the website below because I think it confirms it:

http://thestar.chosun.com/site/data/html_dir/2013/07/18/2013071801401.html?Dep0=twitter

[CREDIT: weareoneexoluvwithfx.tumblr.com]

For their PINK TAPE comeback date poster

So what do you guys think?

https://www.youtube.com/watch?v=r4u3BzM0rqo