LADY GAGA CHEWS UP DAVID LETTERMAN'S NOTES: Lady Gaga showed up on the "Late Show With David Letterman" last night and apparently the words that come out of Lady Gaga’s mouth are almost as shocking as what she puts in it.

In this case it was Letterman's notes!

Gaga's playful outburst came after he started reading off the list of Lady Gaga rumors his staff had compiled and questioned her claim to have eaten the head of a Barbie doll while in concert.

Gaga took the the notes off David's desk and tore them in half. "I'm just so fed up with all of this," she said. Then shoved the torn note card into her mouth.

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