"Youngbloods" is a song by the American rock band The Youngbloods, released in 1969. The song is known for its catchy melody and lyrics that promote peace and unity, reflecting the counterculture movement of the 1960s. It became an anthem for those advocating for social change during a time of political unrest. The song's most famous line, "Come on people now, smile on your brother," encourages listeners to embrace love and understanding among one another. "Youngbloods" gained popularity and has been featured in various films and television shows, solidifying its status as a classic in American music history.