Jackson Brothers -- Grief-Stricken on Death Anniversary ... 'We Miss Him Every Day'

Michael Jackson's death anniversary is a particularly hard day for members of his family, especially his brothers, who tell TMZ ... he is still loved and missed everyday.

Jackie, Marlon, Tito and Jermaine tell TMZ ... "Four years ago today we lost one of the greatest musicians, entertainers, and icons the world has ever known. But to us, Michael was first and foremost our brother. We carry his spirit with us always, and we love and miss him every day."

Michael's youngest brother Randy Jackson tweeted, "Thinking about my brother on this day. Thank U everyone 4 your love and support and 4 the beautiful display of flowers at Forest Lawn."

As we reported earlier, fans have been leaving flowers at MJ's mausoleum by the thousands.

Michael died on June 25, 2009 from a fatal dose of Propofol. RIP.