NCT 127 fans were in for one heck of an alarming surprise, waiting in line for the group's first solo concert 'Neo City: Seoul - The Origin'!

Several hours before the first concert on January 26, lucky iPhone-user fans received selcas of the NCT 127 members backstage, via AirDrop!

The members also scribbled over their photos cute messages like, "Yiyaa super excited Neo City" (Doyoung), "Hello cuties" (Taeil), "See you in a bit" (Taeyong), and more!

The keyword #AirDrop was also seen trending in Korea on Twitter, as fans reacted with comments like, "OMG the AirDrop photos are so cute", "But Doyoung... I have a Galaxy TT", "Send me an AirDrop too /tears/", "Why was Doyoung the only one to type text over his AirDrop selca kekekeke", "The AirDrop is  pretty original kekekeke", and more!

You can find the AirDrop selcas of all 9 members, below! (Winwin was unable to attend the concert due to WayV schedules.)