So it was a huge surprise when he saw the photo, months later.
We have designer Alejandro Gómez Palomo of Palomo Spain to thank for the latter - because it was his creation that helped transform Queen Bey into a goddess. Looking absolutely fantastic in her flowing gown, there's actually a surprising back story to her dress.
The piece is made from vintage silk organza from an old couture textile shop in Córdoba, Spain.
Bey has since stepped out looking more incredible than ever.
"We thought, okay, she won't wear it", Alejandro told Harpers Bazaar, admitting he was just as surprised as everyone else to see her in his creation.
66 people arrested in Spanish horse meat investigation
They worked in co-ordination with Belgium, France, Italy, Portugal, Romania, Switzerland and the UK, Europol said in a statement. The criminal organisation forged the animals' identification by modifying theirs microchips and documentation, Europol alleges.
Palomo notes that Bey "placed a personal order for the dress", so the fashion designer and his team took measurements and tailored the dress to fit the superstar before she got pregnant. "It is circa either the 1950s or the 1960s", Palomo said.
"I thought, Oh my God, I am so in love with this fabric". It had a mid-century quality-but we changed that.
So, like the rest of the world, Alejandro was stunned by Bey's Thursday night upload, but for slightly different reasons. It's just really attractive.
"A$3 esthetically and sexually, I have never felt that there should be clear distinctions between masculinity and femininity.""It's a gown, now, that nearly has the shape of a big fur coat-sleeved and open".