'Tis the season for agency holiday cards, and Wieden + Kennedy London does not disappoint with this little nugget.
The agency set up a "Choir of You" installation outside its Hanbury Street office, which invites passers-by to stand outside the window and open their pipes. They will see their likeness multiplied in the window depending on how high they raise their voices.
So step in front of the window and be inspired to sing your heart out, many times over.
For more on this work, visit Creativity -Online.com.