After rolling out several tour dates, Foo Fighters have launched a countdown on their site that will expire two days from now.

Earlier in the year, the band launched an airline-type web page to announce their European tour dates that center around festivals along with one U.S. show at BottleRock Napa.

NME suggests that the band could be readying to announce a headlining set at Glastonbury, which they were supposed to headline previously prior to Dave Grohl breaking his leg on stage.

The Foos have sent out mysterious airline tickets to fans on their mailing list with their logo inside a pyramid, symbolic of the iconic Glastonbury stage. A plane was also spotted near the Glastonbury festival site earlier in the week, potentially linking the two.