Bonnaroo Music & Arts Festival has been periodically releasing clues on next year’s lineup recently, and the newest RooClue, which just surfaced today, could hint at a possible Umphrey’s McGee appearance in 2017.

The clue, which reads “There are strange things done in the midnight sun after the anchor drops,” may be referring to the band’s classic 2004 album, Anchor Drops. Umphrey’s have been a staple of the Bonnaroo lineup for years and have played several memorable shows at the festival, including a marathon late-night set in 2012 that stretched until sunrise.

See the rest of the Bonnaroo lineup clues on the festival’s Instagram.