Kailash Satyarthi composed an Anthem Against Child Labour.

From the YouTube introduction:

Anthem Against Child Labour is not merely a song, but the musical spark to liberate shackled innocence and robbed off childhood. It is the loudest chorus to unite all voices, minds and souls for emancipation from child slavery. My feelings and emotions along with the children’s quest for freedom have been brought alive by noted singer Jassi’s magical voice and reverberating music.