JT fans, gather yourselves.

Justin Timberlake has been extremely active on Instagram today. All signs are pointing to the release of the second single off his upcoming album The 20/20 Experience – 2 of 2.

It began earlier in the day when JT asked his fans, “Should I release a new single today?” (Easy answer there: um yeah).

Timberlake also included a behind-the-scenes studio photo and a snippet of said single:

If you don’t have Instagram on your mobile device, or if the web version freezes on your computer (I feel you), head over to JT’s website, where you can find already released posts on some sort of puzzle board. Four mystery locks remain. Could one of them contain the new single?

Judging from the snippet (note the lyric “You knock me out”), the track is most likely “T K O.”

Timberlake first announced the new album’s track list through a series of black-and-white videos released via – you guessed it – Instagram back in August.

The 20/20 Experience – 2 of 2 drops Sept. 30.

Update at 3 p.m. PST: here’s another snippet

Update at 5:27 p.m. PST: Here’s another teaser. JT has also confirmed that the song is “T K O.”