Today people received unidentified postcards in the mail. Nobody has yet determined what this may be officially advertising.

There are 6 known variants and street Advertisement in London and Oakland Also there’s mysterious postcards in the mail with the same style, and the number on the cards and the one on the poster (575 = Roswell, NM and 44 = Salisbury, UK), lead to infamous potential alien/UFO site. People tried to call the number and they said there was a someone with a alientype voice.

Many Coldplay fans are actually convinced that it could be a promo for the new album that will be coming in June. But that is not confirmed.

/r/UFOs Thread Link - i.imgur.com