It started on 2 November with this intriguing image
And then, on 5 November, they revealed a little bit more...
Like magic, they popped up on The Chris Evans Breakfast Show the following morning
Jonny Buckland said that, because they didn't go on tour after they released their 2014 sixth album, Ghost Stories, they "took all the energy of a tour and went back into the studio". Hence a new album so soon after the last one.
Chris Martin said A Head Full of Dreams was recorded in Los Angeles and London, and that after Ghost Stories, which was "quiet and small", they wanted to release an album that was "colourful and joyful".
And then Evans premiered their new single, Adventure of a Lifetime:
After that, they nipped over to Radio 1
They sang three very boring songs after Grimmy asked them to create music from boring text messages.
Think these songs could be hits!?
And plenty of you remembered how much you love the band...
1 8 of the most awkward music interviews on chat shows
2 Can you spot the pre-fame celebrities in these music videos?
3 Quiz: Can you match these pets to their pop star owner?
4 Artists that got terrible album reviews, and what happened next…
5 Quiz: Have you been getting these lyrics wrong all this time?