Del Piero opted to leave Juventus after 19 seasons at the club and despite reported interest from Liverpool, the 37-year-old chose to switch to Australian outfit Sydney FC.
"Noel called me maybe once a day to go to Manchester City and every time I say something like, 'Noel, can we talk about this tomorrow?'" The Sun quotes Del Piero as saying.
"He's a lovely guy and I spend a lot of time with him to see the concerts. I think the Oasis song 'Wonderwall' maybe is one of the most beautiful songs."
The High Flying Birds singer is believed to have struck up a friendship with the Italian star in recent years.