It is said that the influence of John Lennon and the Beatles on the sound, style, and attitude of popular music was a veritable "revolution," more than just the lead wave of the so-called British invasion. But Lennon's legacy goes beyond just the music: he was a passionate activist, advocating for world peace, in particular in his speaking out against the Vietnam War. He used his fame and platform to bring attention to important causes, inspiring people to stand up against injustice. He was also an outspoken advocate for the rights of women and people of color.