They Don't Know (Kirsty MacColl song)

"They Don't Know"
Single by Kirsty MacColl
B-side	"Motor On"
Released	2 June 1979 (1979-06-02)
Recorded	1979
Genre	Power pop new wave
Label	Stiff Records
Songwriter(s)	Kirsty MacColl
Producer(s)	Liam Sternberg
Kirsty MacColl singles chronology
"They Don't Know" (1979) "Keep Your Hands off My Baby" (1981)

"They Don't Know" is a song composed and first recorded in 1979 by Kirsty MacColl. Though unsuccessful, the song was later recorded by Tracey Ullman in 1983. Ullman's version reached No. 2 in the UK and No. 8 in the US.