be popular, be in fashion
パリでは何が流行ってるの？
What’s popular in Paris?
最近はどんな歌が流行ってるの？
What kind of songs are popular these days?
これが今流行ってる曲よ。
This is the song that's popular right now.
流行ってるな
It's really popular.
— Good Luck, Have Fun, Don't Die (2026)
どんな種類の音楽が最近流行ってるんですか？
What kind of music is popular these days?