UP10TION have revealed a key code in an 'Invitation' teaser image!

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The teaser image below states, "UP10TION 01-10 Blvd. from code23 to code69," and it was posted along with the Twitter message, "#UP10TION #INVITATION KEY CODE23." The idol group officially announced their comeback this past week, but it looks like fans have more puzzles to piece together. 

UP10TION's new album is dropping on March 19, so stay tuned for more updates until then!