Final answer:
David Bowie and Alice Cooper, although with differing approaches, both made significant contributions to rock music with a strong emphasis on imagery and artistic integrity, much like Bob Dylan and Leonard Cohen's work in music and poetry.
Step-by-step explanation:
Although their approaches differed, both David Bowie and Alice Cooper are recognized for their significant contributions to the music industry, particularly with respect to rock music and stage performance. While not directly linked to Bob Dylan and Leonard Cohen, they can be tied to the broader theme of rock musicians who integrate imagery and integrity into their music. Bowie is known for his innovative and theatrical style, and Alice Cooper for his shocking performances; both however have placed a premium on artistic integrity, with Bowie's diverse musical styles and Cooper's conceptual albums.
Bowie and Cooper were able to contribute to the narrative quality and artistic seriousness that can also be seen in the works of songwriters like Bob Dylan and Leonard Cohen. Just as Dylan used rich imagery and surreal texts and Leonard Cohen expressed sharp poetic observations, Bowie and Cooper have used their music to express personal and sometimes political themes, with a constant adherence to originality and devotion to their craft. These characteristics make them stand out in the history of rock music.