Paul McCartney Becomes World's Third Richest Musician with $1.4 Billion Net Worth

• Paul McCartney's net worth is valued at $1.4 billion by Forbes.
• He is the world's third richest musician, behind Jay-Z and Taylor Swift.
• His wealth comes from his catalog, music rights, touring, and art collection.
• McCartney's fortune has grown significantly over the past six decades.
• Forbes' ranking was announced in their newsletter 'The Billie'.