United Kingdom, May 12 -- Sir Paul McCartney is determined to never let his life turn "sour".

The 83-year-old Beatles legend has reflected on the song Life Can Be Hard, which is taken from his new album The Boys of Dungeon Lane, and was written in the wake of the COVID-19 pandemic, and the finding out how to fall back in love with the world.

He told Mojo magazine: "It beats the alternative, you know? The alternative is that your life turns sour, and I don't want that happen."

The iconic songwriter noted how he relies on his friends, family and even himself to help stave off negative feelings.

He explained: "I don't want to get depressed, so I fight it and think, 'Come on, you've got a lot of good stud going on. Concentrate on that.' ...