T1419 dropped a performance teaser for their upcoming single, "Run Up".

Just a day ahead of their comeback, the boys of T1419 gave a preview of their performance for the upcoming special single.

Originally released as the title track from their Japanese debut mini-album 'Our Teen: Blue Side', the Korean version of T1419's "Run Up" will be released later today on May 9 at 6 PM KST.