The Ivory Coast midfielder, reportedly now the highest earner in the Barclays Premier League pocketing a cool £200,000-per-week, claimed his time at the Nou Camp was 'perfect' despite his factious departure in which he demanded to quit the club.
And while the younger brother of new team-mate Kolo aims to take City to the next level, he revealed his intention to 'some day' return to the Catalan giants.
Down Roo and I'll be back: Yaya Toure wants to help Man City overtake rivals United this season and one day return to Barcelona
'The day of the signing [for City] was difficult for me. I was sad because in all those years I only had Barca in my head and now I'm out,' said Toure.
'I'm very sorry because the club is the club in my heart. My time in Barcelona has been perfect. Here I have my best friends and always thought I would end my career here.
'I want to thank everyone for what they have done for me. The people of Barcelona are very good who know much about football . I have no words to apologise to all the people who wanted me to stay.'
Cooking up a storm: Yaya Toure's claims that he wants to leave Man City for Barcelona one day will not impress Eastlands chief Garry Cook just days after signing the Ivory Coast star
Toure is certain he will prove his move to Eastlands was purely on footballing grounds despite the financial gains on offer, adamant that he can help Roberto Mancini's men eclipse rivals Manchester United and champions Chelsea next season.
'I go to City to help them grow and take them to the level of Manchester United and Chelsea,' he added.
'However, I am convinced that some day I shall return to Spain. My heart is Barca and some day I will wear this shirt again, I am sure of that. Barca is the club of my life.'
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