Invisible was a song later included as a hidden track on which thirteenth U2 album?
Invisible (U2 song) "Invisible" is a song by Irish rock band U2. Unveiled in a Super Bowl XLVIII television advertisement, it was available as a free digital download through the iTunes Store from 2–3 February 2014. Bank of America gave $1 for each download of the track to (RED), an organisation co-founded by Bono, to fight AIDS. Since 4 February, it has been available as a paid download, with all the proceeds also going to (RED). The song was later included as a hidden track on the deluxe edition of the group's 2014 studio album "Songs of Innocence".
Wild Honey (U2 song) "Wild Honey" is a song by the rock band U2. It is the seventh track on their 2000 album "All That You Can't Leave Behind". The song was played eleven times during the Elevation Tour.