Rock is one of the most popular styles in music. The largest number of the most special events took place in different parts of the world at the end of the 20th century. There were a lot of great concerts that gathered millions of people in one place. They listened to popular hits and enjoyed the vibe with millions of other fans. However, the popularity of rock didn’t end when the 21st century came. Scroll down below and read about the most mind-blowing rock concerts of the 21st century. Live 8 – Philadelphia It was an amazing concert that took place in Philadelphia in 2005. It gathered roughly a million people who came to listen to their favorite music and support the event’s main goal. The concert aimed to collect donations for fighting famine in the poorest African cou...