Citizens of Boomtown support the Ukrainian people
Thank you for letting me know because we don't have that saying in America. I like it, though!
‘Backs to Boomtown’
‘Sia admits Boomtown Rats influences for her live shows’
‘Boomtown Rats announce Garry Roberts replacement will be Jake the Peg’
‘Boomtown Rats halt show to guide new lighting crew member’
‘Boomtown Rats forced to hail cabs after tour bus breaks down’
‘Rumours regarding Boomtown Rats guitarist and bass player relationship leave fans wondering’
Is it a caption for Citizens of Boomtown you're looking for or for a postcard you're going to be mailing to someone?
It’s an expression (maybe UK only?) for inviting competition entries, as in ‘send answers on a postcard to’ etc. So idea is we caption what might be happening in the picture