Hǎoduō hēifěn kàn le tā de xiànchǎng biǎoyǎn jiù zhuǎnfěn le.
A lot of haters became fans after seeing her perform live.
Tips
usage
Specifically a hater-to-fan conversion (从黑转粉). The opposite - fan to hater - is 脱粉 ('leave the fan group') or 脱粉回踩 ('leave and trash-talk'). Don't confuse 转粉 with 涨粉 (gain followers in general).
culture
Fandom (饭圈) vocabulary is rich: 黑粉 (haters), 路人 (neutral 'passerby'), 唯粉 (single-bias fan), CP粉 (shippers), 团粉 (group fans). Movement between camps is named precisely - 转粉 = path taken from hate to love.
