Sunday we got the new song from U2, "Invisible", and that opened up a floodgate of questions about the band. Bono talked to Zane Lowe of BBC Radio 1 to give us some answers.

He said that the album is still being worked on, that the guys are doing their best to have it done by April. During the writing and recording sessions, they have been listening to a lot of Ramones and Kraftwerk songs and that has heavily influenced things.

He also hinted about touring to support it, that while they enjoyed all the outdoor concerts they did, on the next round they'd like to be inside buildings and play for us.

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Is summer too early for U2 to hit the road or did Bono specifically say indoor venues because it's going to be a fall / winter 2014 and 2015 tour? Time to play the waiting game...