係每一位歌手喺推出市場之前
It's just that every singer has to be on the market.

Cantonese Sentence Breakdown

係 hai6
(Cantonese) to be
to connect
to relate to
to tie up
to bind
to be (literary)
to involve
relation
relationship
consequence
yes
indeed
right
每一 mui5 yat1
every
位 wai6
position
location
place
seat
classifier for people (honorific)
classifier for binary bits (e.g. 十六位 16-bit or 2 bytes)
throne
post
rank
status
歌手 go1 sau2
singer
喺 hai2
in
推出 teoi1 ceot1
(noun) (or product) To promote (to market)
市場 si5 coeng4
(noun) supermarket
之前 zi1 cin4
before