This morning on 98FM's Big Breakfast, Alan from Shankhill guessed the Secret Sound of the city!
He won €3,550 for giving us the right answer.
And if it was driving you mad, here's what it was:
We'll be back on Tuesday morning with a brand spanking new sound starting off at €1,000.
Cooper and Luke on 98FM's Big Breakfast
Weekdays from 6am