The iconic smiley face was made popular in the 1970s by Bernard and Murray Spain. They produced the graphic en masse – on buttons, t-shirts, coffee mugs and bumper stickers accompanied by the words “Have a happy day”.

Set to make a comeback next season, the smiley graphic will re-appear on kids fashion and accessories. Grab your Smiley face tees and make a happy statement.

Smiley face tee, ¥1,800, Tokyo.