U2's Bono and The Edge surprised commuters with an impromptu set on the U2 subway line in Berlin, Germany.
U2's Bono
The Irish rockers treated 120 lucky competition winners - who applied for tickets through local radio station Radioeins - to the treat of a life time as they boarded an underground train at Deutsche Oper on Wednesday (06.12.17) to perform acoustically for 15 minutes.
The set included 'One' and new track 'Get Out of Your Own Way' from their latest record, 'Songs of Experience'.
The city no doubt holds special memories for the 'With or Without You' group as they recorded 'Achtung Baby' at Hansa Studios, which is located near to the Berlin Wall, there in 1990.
The late great David Bowie recorded 'Low' and 'Heroes' at Hansa, Iggy Pop recorded 'The Passenger' and 'Lust For Life', and the likes of Depeche Mode and REM also made it their home for making music over the years.
A new movie telling the story of the recording space is set to air next year.
'Hansa Studios: By the Wall 1976-90' is a brand new, feature-length film by Mike Christie documenting the historical, cultural and artistic significance of Hansa, which will be broadcast on Sky Arts on January 10, 2018, two days after Bowie's birthday and on the second anniversary of his death.
Meanwhile, guitarist The Edge recently shared how he thinks the most "unique" aspect of 'Songs of Experience' - their 67th studio album - and the band in general, is that not many groups have made so much music with the original line-up intact.
He said: "I hope you don't need to know anything about U2, or anything about the context, to enjoy [Songs of Experience].
"I think it's an album of just classic songs, great melodies, great hooks, great lyrics.
"I think there's very few bands in the history of rock and roll that have been around and made as many albums as we have with the same line-up ... that perspective is unique, you know? On the last record ['Songs of Innocence'] we wrote about where we came from.
"How this band came together, Dublin of the late 70s early 80s, and this new record is the companion album.
"But it's from this current perspective now ... So many years later, what have we learned?"