Sometimes a tour plane can get really boring, and the time until the next landing seems to drag on forever. Bono suddenly starts thinking about the years 2006 to 2015, grabs his notebook and begins to draw … Which songs was he thinking of?

For each song title, we are looking for a specific letter. Count letters only – no spaces, brackets or similar characters.

Hint: All songs are from 2006 to 2015. Correctly rearranged, the 11 letters form our solution.