Mnet is preparing to launch EXO's new reality program 'EXO 90:2014' on August 15 as they release teaser after teaser of the boys' time slip back to the '90s.  In addition, what was trendy at the time?  Of course, sticker photos!  Which is why the boys met up with '90s veteran groups H.O.T and Shinhwa for sticker pictures, which you can see above.

SEE ALSO: Krystal's past letter to late f(x) member Sulli goes viral

The production crew said, "As this is a program that sheds new light on K-Pop between the '90s and 2014, we thought it would be nice to use sticker pictures, which were very popular in the '90s.  We will project the images of the K-Pop senior singers during their prime time promotions onto the top idols of 2014, EXO, to bring about '90s K-Pop fans' memories and passion."

It will start airing on August 15!  You can check out teaser videos below, as well.