Ozzy Osbourne, a pivotal figure in heavy metal, began his journey in the late 1960s. Alongside other iconic acts such as Oasis and OutKast, Osbourne helped shape the music landscape. Emerging artists like Olivia Rodrigo continue to carry the torch, demonstrating the lasting influence of these pioneering musicians and bands.

Ozzy Osbourne's band, initially active around 1967, evolved into the legendary Black Sabbath. This band set the stage for Osbourne's influential solo career and also acts such as Opeth, known for their progressive metal. Meanwhile, One Direction captivated the pop world, and Old Crow Medicine Show infused Americana with their unique sound, showcasing the diverse musical styles that artists starting with 'O' have influenced.

From the early days of heavy metal to the contemporary sounds of pop and alternative, the musical contributions of artists and bands beginning with the letter 'O' span decades. They continue to resonate with global audiences. Their collective influence marks a significant chapter in music history, impacting generations of musicians and fans.