A six-decade career… 21 studio albums… 140 million albums sold globally… 20 Grammy Awards won… And now, American rock legend Bruce “The Boss” Springsteen has reached billionaire status. According to a recent estimate by Forbes, Springsteen is worth $1.1 billion, and he joins Paul McCartney and Taylor Swift as one of music’s most recent billionaires. In 2021, Springsteen sold his music catalog to Sony for an estimated $500-$550 million, and the artist continues to generate income through new projects and tours. This year, he’s embarked on a three-month European tour, rereleased a specia…