On 'The Ellen DeGeneres Show' (weekdays, syndicated), wife Portia de Rossi channels Marilyn Monroe in a surprise birthday greeting for Ellen DeGeneres, who turns 53-years-old today.

De Rossi appears in the taped greeting wearing a white satin gown, platinum blonde wig, and does her best impression of Monroe singing 'Happy Birthday.'

Something goes terribly wrong, though, when a wind machine seems to malfunction and literally blows de Rossi right off her feet while she sings.

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