When it comes to sheer adhesiveness, nothing sticks with you like the melody of a classic pop hit song, or so-called "earworm". That's why 3M took the hooks of three of the catchiest tunes ever and put them on numerous billboard sites across Hong Kong. Hand-lettered on-site by one of the world's leading tape-artists using actual 3M duct tape, each billboard showed 3M's sticking power in a unique way that's as simple as memorable. Where possible, the actual tape rolls used for the taping were finally stuck to the billboard as a "live" packshot. For poster sites where billboards had to be put behind a glass shelter, an alternate visual was used instead that featured a printed packshot.