aha, I found that "in London" is not in the translated text.
But, even with "in London" I felt Ayu's original text is a little exaggerating. I guess the reality is "famous" musicians and models in London and in the industry of making PVs, CMs, and any scenes with extras. Anyway we'll see when the PV is released.
> 約50人以上のロンドンの有名なミュージシャンやモデルさん達にも出演して頂き、・・・
>> more than 50 famous musicians and models in London are featured.