I believe (belieb?) they are making a statement about how he has a more exciting style in chess, maybe his quick rise to fame and youth, maybe good looking appe

I believe (belieb?) they are making a statement about how he has a more exciting style in chess, maybe his quick rise to fame and youth, maybe good looking appearance?. If you search "Justin Bieber of chess" you see lots of people are using it, not just this one article. I don't really follow chess, just Bieber, but Magnus seems interesting, going to be reading up on him! But I agree, it seems like an odd comparison.