Kim Kardashian-West is 40 and there has not been a more historic milestone since the Queen's Diamond Jubilee in 2012.
The reality TV star celebrated 40 laps around the sun yesterday and, given almost half of her life has been filmed, E! aired a Keeping Up With The Kardashians special in which Kim and her siblings reminisced on her most cringe moment ever.
Fans who have watched the show for years will enjoy the aggressive reminder that Kim – often criticised for having no talent – recorded a pop single titled Jam (Turn It Up) in 2011.
Reflecting on it during the special, Kim said: "Oh my god, I can't. I can't even hear my voice. The things I've done are so embarrassing."
So let's dredge up all the details of this classic pop tune.