Hollywood faves Danny DeVito and Rhea Perlman took their kids to see
Fiddler on the Roof on Sunday. After catching the performance, the DeVito clan headed backstage to say, "Mazel tov!" to Harvey Fierstein, whom Devito directed in the flicks
Duplex and
Death to Smoochy. Oy, the kissing and hugging! You would not believe!