marvin gay. the purpose was to mark the legendary purpose of the song, what's going on. but as bruce johnsons, legend helped to launch what's going on now. that's a campaign aimed at getting young people to use the arts and social media to get involved. ♪ [ music ] >> it was 40 years ago that d.c. native son, marvin gay, called the young masses to get involved on every social and political front. >> today at the kennedy center, john legend was repeating the call, singing marvin gay's, what's going on. still relevant today, with students from the city's duke eling ellington school for the arts. ♪ [ music ] >> much has changed since marvin gay performed the song in this building. and much remained the same. >> too much unemployment in america. there are too many homeless people on the streets. >> know the issues for youth today. many are living. >> i lost six of my friends, my senior year alone in my neighborhood. they were all murdered. >> we have to wear this. we have to sing this type of song. we have to be somebody who we don't want to be. i think society is also changing and teaching us t