* BUBLE PROPOSED BACK IN NOVEMBERCanadian crooner MICHAEL BUBLE has been engaged for two months - he proposed to his girlfriend LUISANA LOPILATO back in November (09). The couple's happy news broke last week (08Jan10), with reports claiming the 34-year-old Home hitmaker asked the Argentine actress/singer, 22, to marry him over the Christmas (09) holidays. But Buble's representative reveals the star has been engaged for longer than the tabloids suggest. His spokeswoman Liz Rosenberg tells People.com,