The joke in one line
A football star in a recording studio, shirtless, headphones on, reading his brand new hit straight off his phone like he wrote it in the car on the way over. The caption that travelled with it was 'Neymar cantando novo HIT', Portuguese for 'Neymar singing a new hit'. The friend beside him with folded arms is the second half of the joke: he is clearly judging the verse.
