Aerosmith is a prominent American hard rock band, sometimes referred to as "The Bad Boys from Boston" and "America's Greatest Rock and Roll Band". Their unique style, rooted in blues-based hard rock, has also come to incorporate elements of pop, heavy metal, glam, and R&B, which has inspired legions of rock artists that came after them. They are the bestselling American hard rock band of all time, having sold 150 million albums worldwide, including 65.5 million albums in the United States alone. They also hold the record for the most gold and multi-platinum albums by an American group. The band has scored 21 Top 40 hits on the Billboard Hot 100, nine #1 Mainstream Rock hits, four Grammy awards, and ten Video Music Awards. They were inducted into the Rock and Roll Hall of Fame in 2001.