noun
nostalgia boom; retro revival
Refers to a period or trend where old-fashioned styles, music, or culture become popular again. Often used in media and marketing contexts.
wasei-eigo (Japanese-coined English), from retro boom
最近、昭和のレトロブームで古い喫茶店が人気だ。
Lately, old-style coffee shops are popular due to the Showa-era nostalgia boom.
レトロ
Riding the retro boom, record sales are increasing.