New daddy Sir Elton John is showing some tough love  to fellow musician Billy Joel.  Admitting that Billy is going to “hate  him” for it,  John told Rolling Stone  in the Feb. 17 edition, that he and his former touring partner  had to  cancel many shows in the summer of 2009 because of Joel’s  sicknesses  and “alcoholism.” At the time some of the duo’s high-grossing tour were  postponed supposedly because the 60-year-old Joel came down with  “flu-like symptoms”. But Elton flat out states that Joel needs to take  rehab more seriously and “do something better” with his life, the  Associated Press reported.   He also says Joel should do rehab like he did it – with patients  cleaning floors, not watching television.  Joel has tried rehab for his  alcohol issues on two occasions, a month in a California rehab center in  2005, and about two weeks at a Connecticut facility in  2002.source-(HMG Celebrity News)