8 Facts About U2

1. Aside from musical collaborations, U2 have worked with several authors.

2. In 2006, U2 collaborated with pop punk band Green Day to record a remake of the song "The Saints Are Coming" by the Skids to benefit Music Rising.

3. In 2016, U2 worked on their next studio album, Songs of Experience, which is intended to be a companion piece to Songs of Innocence.

4. On 9 September 2014, U2 announced their thirteenth studio album, Songs of Innocence, at an Apple product launch event, and released it digitally the same day to all iTunes Store customers at no cost.

5. On 25 October 2009, U2 set a new US record for single concert attendance for one headline act, performing to 97,014 people at the Rose Bowl in Pasadena.

6. In March 2005, U2 were inducted into the Rock and Roll Hall of Fame by Bruce Springsteen in their first year of eligibility.

7. In May 1980, U2 released "11 O'Clock Tick Tock", their first international single and their debut on Island Records, but it failed to chart.

8. The same day, at the end of an Irish tour, U2 played a show in the 2,000-seat National Stadium in Dublin.