According to reports, singer-songwriter Joni Mitchell was hospitalized in the intensive care unit Tuesday after someone found her unconscious at her home in Los Angeles.

Here's 92-year-old American treasure Pete Seeger, accompanied by Arlo Guthrie, Tom Chapin and David Amram, as well as grandson Tao Rodriguez-Seeger, singing "This Little Light" at Columbus Circle at around midnight last night. Seeger and the other musicians had a performance at Symphony Space on the Upper West Side on Friday evening; afterward, the group joined a crowd of about 1,000 for a march 30 blocks south (singing the entire way) to Columbus Circle, where they set up a small performance. (In the video, Seeger, wearing a red hat, is sitting just to the right of Amram, who's playing a... whistle? Pipe? Flute?)