Michael Jackson: Brothers Perform ... On Eve of Death Anniversary

Michael Jackson died 7 years ago today ... and last night his brothers tapped into his spirit to bring down the house at the San Diego County Fair.

Jermaine, Tito, Jackie, and Marlon headlined Friday night at the Del Mar Fairgrounds -- paying tribute to their fallen brother with some of his hits, including, "Wanna Be Startin' Something."

The brothers also sang "Jackson 5" staples, like "ABC."

MJ tunes and fried Oreos ... not a bad Friday night.

#RIP