Vampire Weekend said their new album will be an 18-track double album (with the initials "FOTB") and they're planning to release the first two singles, "Harmony Hall" and "2021," this Thursday. Keeping in the spirit of their drawn-out, tease-heavy album rollout, they've now shared a troll-ish teaser for "Harmony Hall" featuring one of its guitar lines on loop for two hours:

If you make it (or skip) to the 20:21 mark, someone sings "boy." And if you want to know how to play it, they've helpfully provided the guitar tab too: