A man told his doctor he couldn't stop singing Tom Jones songs.

This classic doctor-patient gag is a masterclass in musical wordplay. The humor comes from the perfect double meaning of the doctor's diagnosis. On one hand, he's offering a calm, clinical reassurance that the patient's strange condition isn't particularly rare. On the other hand, he's perfectly naming "It's Not Unusual," the very song that's likely been stuck in the poor man's head on a loop. The punchline works as both a medical assessment and a pop culture reference at the same time.

For the joke to land, you just need a little bit of pop history. Sir Tom Jones is a legendary Welsh singer with a powerhouse voice, and "It's Not Unusual" was his breakout international hit in 1965. The song is so iconic that its title is instantly recognizable, making it the perfect setup for this clever pun. The joke cleverly turns a serious medical consultation into a surprise sing-along, making the doctor's professional opinion the punchline itself.