My husband and I have been sharing an Aha earworm since he accidentally caught sight of the sheet music of Living Daylights 2 weeks ago. Just a glance of the name was enough to infect him.
Earworms a deux are the worst because you keep reinfecting each other.
trotting across the concourse at St Pancraa International and getting earwormed by a baroque piano version of Baker St. 18hrs and counting.