The singer/songwriter went solo after the break-up of his band in 2009 and now performs under the name Noel Gallagher's High Flying Birds.
However, his new career got off to a bumpy start and Gallagher admits he was so ashamed of his financial losses, he kept it secret from his partner, Sara MACDonald.
He tells Britain's Loaded magazine, "Everything I've done since I left Oasis has come from my own pocket. You've got to pay for the tour, got to pay for the wages and you don't really break even for about nine months. I don't mean I lost money. I mean I lost a f**king s**t load of money. It was a few million, like. I had to lie to Sara at first, and when I eventually did tell her, she freaked out - I mean freaked out."