Jose Mourinho was met by hundreds of cheering Roma fans as he arrived in the Italian capital to begin his new coaching role.
The Giallorossi supporters thronged outside Ciampino airport to greet the Portuguese, who landed his latest job just weeks after being sacked by Tottenham.
The fans were ready to party, believing Mourinho's arrival will spark a new era of success at their club.
Sporting a Roma yellow and red scarf, Mourinho addressed the crowd before being driven away to the club's Trigoria training centre for the first time.
Mourinho returns to Italy, where he left as a superstar in 2010 after leading Inter Milan to the treble - Champions League, Serie A and Coppa Italia.
Despite tough spells at Chelsea, Manchester United and Tottenham - and being sacked by all three - Mourinho insists he has improved as a coach since his first stint in Italy.
"I'm much better now. I'm serious. I think this is a job where experience means a lot," he told the club's website.
"Since I left Italy I went to Real Madrid, which was an incredible experience, and I reached my dream of winning in Italy, England and Spain.
"It's the kind of job where you can only get better until the day where you lose your motivation.
"One thing is to come to a country for the first time where you arrive level zero and you have everything to learn about it.
"In my case that's not the case. I know Italy as a country, I know Italy as a football culture, I know something about Roma because in my Italian time Roma was the real rival fighting for the title."
The three-time Italian champions, who are trophyless since 2008, finished seventh in Serie A last season.
"We want to make Roma a success but not an isolated moment of success, to leave a legacy," added Mourinho.
"It's not in my nature to wait too long for that smiling future to arrive. I want to try and accelerate the process and hopefully we can make that happen as soon as possible."
In Rome, he replaces fellow Portuguese Paulo Fonseca, who left the club after two seasons.
Fonseca succeeded Claudio Ranieri, who had a brief spell as coach after Eusebio Di Francesco was sacked in January 2019.