SHOWBIZ SHAKE-UP! MEGHAN MARKLE FACES BOYCOTT, SEAN "DIDDY" COMBS CASHES OUT $55 MILLION MANSION, AND BILLY JOEL REVEALS WHY HE QUIT WRITING HITS

Meghan Markle's upcoming MasterChef Australia appearance is already sparking boycott calls before it has even aired. Meanwhile, Sean "Diddy" Combs has sold his Miami Star Island mansion for a whopping $55 million, while Billy Joel reveals he walked away from songwriting at the height of his success because he never wanted to outstay his welcome with mediocre music. Rob's latest exclusives and…