Remember the hilarious “what are those?” Vine from a few years ago that made fun of an officers shoes, which then became a popular phrase for kids pointing out ugly shoes? Well it turns the guy who originally made the Vine & meme has sadly passed away. His name was Brandon Moore, better known to the internet world as Young Busco. His death was first reported this morning (11/26) by Bay Area news reporter Melissa Colorado, who also works for NBC.

The cause of his death has not yet been revealed, but he was sharing content on his Instagram page as lately as just yesterday Sunday, Nov. 25th.

Moore's "What are those?" Vine was viewed almost 38 million times on that app alone following its upload in 2015, and was so popular it even founds its way in the hit film Black Panther earlier this year, despite him not liking it.

“When I saw [the scene], my girl was trying to record it” he told HuffPost in an interview earlier this year. “I slapped the phone out of her hand, because I was like, ‘I don’t want to fucking be a part of this.’ For real, every time I see that shit, I get depressed. ... I feel good I created something that’ll be with the world forever, but then I feel bad because I didn’t handle my business part correctly.”

Moore was 31 years old and the father to 5 children. R.I.P.