SOURCES: OSMOND’S FAINTING SPELL SCRIPTED ON ‘DANCING’ SERIES

Sources on the set of "Dancing With the Stars" tell TMZ that Marie Osmond's fainting spell was scripted — to the point where she had a writer just off camera feeding her lines when she stood up!

Our moles say Marie has a writer on set at all times, prompting her with witty conversation. One on-set source says he was in position when Marie went down — and didn't miss a beat.