According to MTV.com, Prince Michael and Paris Jackson are rumored to be making their first public appearance since their father's memorial last summer. The two oldest children of Michael Jackson are said to be accepting a special Lifetime Achievement Award for their late father at the Recording Academy's Special Merit Awards ceremony in Los Angeles tomorrow. They will be accompanied by their grandmother, Katherine Jackson. Along with earning the posthumous award, Jackson will be honored with a special 3-D tribute during the live broadcast of the 52nd Annual Grammy Awards on Sunday night. Read More In 2009, we lost the king of pop. To pay tribute, we remembered Michael Jackson's life in photos. through the years View photos of the year in Michael Jackson.