Justin Bieber's music has always felt like the perfect sound for this generation's youth. So it's worth listening to Tronicbox's " What Do You Mean It's 1985" — a rework of Bieber's 2015 hit "What Do You Mean?" — to get a sense of what his music could have meant for kids of a different time period. Bieber's ticking clocks and iPhone chirps are replaced here with keytar, sax, and lots of '80s schmaltz. Picture prom with lots of poofy sleeves, and then listen below.