Neymar has pledged to help Paris St Germain "conquer the titles" the fans crave after completing a world-record 222 million euro transfer to the ambitious French club.
The 25-year-old Brazil forward, whose release from Barcelona was secured for 222m euros (£200.6million) on Thursday afternoon, has signed a five-year deal with PSG.
Owned by Qatar Sports Investments, the Parisians' principal target remains winning the Champions League, a competition in which they have consistently failed to progress beyond the quarter-finals.
Neymar, a Champions League winner with Barcelona in 2015, has now committed to the challenge of landing Europe's top prize with PSG, telling his new team's official website: "I am extremely happy to join Paris St Germain.
"Since I arrived in Europe, the club has always been one of the most competitive and most ambitious.
"And the biggest challenge, what most motivated me to join my new team-mates, is to help the club to conquer the titles that their fans want.
"PSG's ambition attracted me to the club, along with the passion and the energy this brings. I have played four seasons in Europe and I feel ready to take the challenge.
"From today, I will do everything I can to help my new team-mates, to open up new horizons for my club and to bring happiness to its millions of supporters around the world."
The Sao Paulo-born striker will meet the press in Paris on Friday at 1330 local time before being formally presented on the Parc des Princes pitch two hours later.
Neymar had indicated his desire to depart Barcelona, for whom he scored more than 100 goals, on Wednesday.
At the Nou Camp he formed the fabled 'MSN' strike partnership along with Lionel Messi and Luis Suarez that delivered a treble of league, cup and Champions League in the 2014-15 season.
Neymar was the driving force behind Barcelona's remarkable comeback against PSG in the European quarter-finals last season. He scored twice and set up the winner as the Catalans won 6-1 to overturn a 4-0 first-leg deficit.
French newspaper Le Parisien have claimed he will earn 30m euros (£27m) net per year, or close to 600,000 euros (£540,000) each week after tax at PSG.