Gakpo was the Netherlands' big exclamation point during the World Cup.
He scored three goals as the team reached the quarter-finals where they went out on penalties against eventual world champions Argentina.
In the Dutch top league, he scored nine goals and twelve assists for PSV Eindhoven that season.
"Can't save me"
Now Liverpool announce that the 23-year-old has signed for them.
- I'm really looking forward to playing at Anfield.
I have heard many great stories about the arena and about the atmosphere.
I can't save myself.
My goal is of course to win as many trophies as possible with the team, to perform well and to show the world what we as a team and I as a player can do, he says on the club's website, adding:
- And personally, I just aim to continue to develop and become a better player with each passing season.
Gakpo will be ready to play for Liverpool at the turn of the year, if his work permit is cleared.