In addition to this post, I found two songs using a sample of Je t'aime moi non plus. We all know Guitar Song by Texas (video), but Brit actress Misty Oldland used it too for her very Gainsbourgian titled 1994 single A Fair Affair (video). Dutch singer Jes covered that single for her 1999 debut Seven Days. I can't find any info on Jes, apart from this. Guess that her album and single fell on deaf ears.
Jes - A fair affair
Misty Oldland - A fair affair