City star Aguero to make bow in Dublin
The 23-year-old has signed a five-year contract, worth a reported £200,000 (€228,000) a week and has been given the number 16 shirt.
No fee was confirmed by either club, but it is thought City have paid Atletico Madrid £35m (€40m) for Aguero, eclipsing their previous high of £32.5m paid for Brazil forward Robinho in August 2008.