The Beatles' 1964 World Tour, also known as the "Beatlemania Tour," was a groundbreaking event that marked the beginning of the rock and roll concert tour phenomenon. The tour spanned 34 cities in 23 countries and drew massive crowds, creating a global sensation.

Michael Jackson's Bad World Tour was a massive undertaking that spanned 16 months, 123 concerts, and five continents. The tour grossed over $125 million, setting a new record for the highest-grossing concert tour at the time. It also helped solidify Jackson's status as a global superstar.

Pink Floyd's The Wall Tour was known for its elaborate stage sets, which included a giant wall that was built and torn down during the show. The tour also featured extensive use of pyrotechnics and other special effects.

U2's PopMart Tour was met with controversy due to its high ticket prices, which ranged from $50 to $150. The tour also featured a large, inflatable lemon as its centerpiece, which drew criticism from some fans.

Bob Dylan's Rolling Thunder Revue was a tour that featured a rotating cast of musicians and poets, including Joan Baez, Ramblin' Jack Elliott, and Allen Ginsberg. The tour was notable for its political and social messages, which were often expressed through Dylan's songs and performances.

U2's 360° Tour was the first concert tour to use a 360-degree stage, which allowed the band to perform in the center of the arena and give all fans a clear view of the show.

U2's 360° Tour was the first concert tour to gross over $1 billion, with a total gross of $1.1 billion from 110 shows.

Beyoncé's Formation World Tour was the first concert tour to feature a virtual reality experience, allowing fans to watch the show from a 360-degree perspective.

Coldplay's A Head Full of Dreams Tour was the first concert tour to be streamed live on YouTube, with over 50 million people watching the show.

Travis Scott's Astronomical Tour was the first concert tour to be held in a virtual world, with over 12 million people attending the show in Fortnite.