Vying, unsuccessfully, for the title of funkiest white band of the 70s, here is Rare Earth performing, I Just to Celebrate, in front of 250,000 fans at the Ontario Speedway, California on April 6th, 1974. The video is from the one day concert known as, California Jam, and featured the likes of – Earth Wind and Fire, Eagles, Seals and Croft (ugh), Black Oak Arkansas, Black Sabbath (yeah!), Deep Purple and Dreadful Lake and Palmer. Enjoy…