Which famous American band is shown in the photos at the beginning of their 50 plus year career?
Correct answer: ZZ Top

tunegrabber
the pictures are hard to see, being a trio I knew it was ZZ Top because the other trio listed was stray cats who use a stand up bass. I've seen all 4 artists listed!

toothless beachrat
I saw them perform live 3 times in California. Interesting that Gibbons' former band was named "moving sidewalks" because when I saw them at "Irvine Meadows" they would step onto a large "belt" that worked like a treadmill and they would play while being moved across the stage. Kind of like a moving sidewalk!

Danielle
Never been a fan, but "trio" gave it away...