Ending their long strange trip of 50 years, the surviving members of the Grateful Dead played their final "Fare Thee Well" concert at Chicago's Soldier Field Sunday night, urging a massive fervent crowd to take the feeling of the night, "Remember it, take it home and do some good with it - please, be kind.” In honor of the 50th anniversary event, the great Playing For Change released a video of their own cadre of global artists covering "Ripple." "The ripple effect," said Playing co-founder Mark Johnson, "is that the next generation gets to learn to play music all over the world.” Net proceeds from the video will benefit the Playing For Change Foundation’€™s music schools and programs for children worldwide.