Kate Garraway's GMTV Apology

Kate Garraway has been blasted by 'GMTV' bosses over comments she made about Mariah Carey.

The presenter - who claimed earlier this week the singer had astounded the show with her "diva" antics - has been warned never to make similar claims in her New! magazine column as it may put off other big name stars from appearing.

A source told Britain's Daily Mirror newspaper: "What Kate said caused big problems backstage.

"The huge entourage was actually a choir and musicians used by Mariah. When stars come to be interviewed on 'GMTV' they don't expect this. Even worse, what Kate wrote wasn't true.

"Kate has been carpeted by bosses and told it cannot happen again. It looks bad for 'GMTV' to be linked to these sort of comments about a guest."

It has also emerged that Kate wasn't even in the programme's studios when Mariah recorded her appearance.

The 42-year-old presenter is said to be "mortified" by the incident and has vowed not to make the same mistake again.

A friend said: "She was misinformed and is mortified by what has happened. She has apologised to Mariah and her bosses and will make amends in her column next week."