The Colombia international has pledged to help the club return to its place among the elite of European football after sealing his move from Sevilla.
Carlos Bacca says he cannot wait to start life with AC Milan, insisting the club remains "one of the best in the world".
The Colombia international's switch to San Siro was confirmed on Thursday, with the Rossoneri thought to have coughed up a sum close to the 28-year-old’s 30 million euro release clause.
The move brings to an end what Bacca has revealed was a two-month wait.