U2
U-Turn
U.S.B.
UFO
Ugly Kid Joe
Ugly Wanda
Ultras
Ultravox
Uncle Sally
Uncle Sam
Undecided
Under Fire
Underoath
Under Suspicion
Underground Rebels
Union
Unknown
Unruly Child
Unstoppable Kamikazi Idiots
Unto Others
Up All Night
Upfront
Upper Crust
Uprising
Urgent
USA Rocks
Uthanda
Uttaro
Uzi Suite
The most famous rock band that starts with the letter “U” is U2.
U2 is an Irish rock band formed in Dublin in 1976. They consist of Bono, The Edge, Adam Clayton, and Larry Mullen Jr. They have released several albums and have sold over 150 million records worldwide, making them one of the best-selling music artists of all time. U2 is considered one of the most popular and successful bands in the history of rock music, and are known for their hit songs such as “With or Without You,” “I Still Haven’t Found What I’m Looking For,” and “One” and their elaborate live shows and showmanship. They were inducted into the Rock and Roll Hall of Fame in 2005.