"The only difference between vaudeville and rock 'n' roll is a microphone. You're just entertaining people. You can please some of the people some of the time. If you like it, you like it, if you don't, you don't. But it's showbiz." Ozzy Osbourne fires back at critics who think his decision to voice a deer character in SIR Elton John's new animated Disney movie GNOMEO & JULIET is a bad idea.