How many artists have sung look what they've done to my song?

"Look What They've Done to My Song, Ma" has been covered by several artists, with the most notable versions being by Melanie Safka and Joan Baez. Other artists, including The New Seekers and The Hollies, have also recorded their interpretations of the song. While the exact number of artists who have sung it may vary, it has been performed by numerous musicians across different genres over the years.