Elton John trashes Janet Jackson for lip-syncing on tour: "F*ck off"...

In a profanity fueled F-worded rant, Elton John doesn't have nice things to say about Janet Jackson's vocal techniques on her latest 'Unbreakable' tour.
In a new Rolling Stone interview, he says:
“You know, f*cking music magazines writing a review of Janet Jackson saying, ‘This is the greatest show—four and a half stars.’ It’s f*cking lip-synced! Hello! That’s not a show! I’d rather go and see a drag queen. F*ck off.”
Yiiiikes. Did she deny him a duet or something? Why is he so angry and concerned about what another artist does on tour? Janet has heavily relied on backing tracks for her tours throughout her entire career because her shows are heavily choreographed. She is dancing her ass off throughout most of the show, only singing live fully when taking a breather for the ballads. This is common knowledge if you actually follow Janet's career. If an artist has never lip-synced, I believe they should take pride in that, without the need to trash another artist. He is a completely different type of artist from Janet. People don't go to her shows to listen to her voice. She is not a vocalist. People want to see her dance, and that is exactly what she gives them.