The N-Dubz singer and former 'X Factor' judge was arrested on suspicion of supplying class A drugs on Tuesday, after allegedly being caught on camera setting up a drugs deal by an undercover reporter working for The Sun.
Mrs O. - who replaced Tulisa on the talent show judging panel - made the comment during the first day of auditions for the new series in Glasgow on Tuesday.
When a Daily Record reporter asked what she thought of Tulisa's arrest, Sharon quipped: "I loved it!"
As the journalist said, "you can't say that, it won't look good on paper," Mrs O laughed.
However, Sharon's reps later contacted the paper to say that she was replying to a different question, after being caught by a pack of journalists.
Tulisa is said to be in a 'fragile' state since being released on bail on Tuesday.
A source told The Mirror: "For all her bravado, she is just a vulnerable 24-year-old girl. She's very fragile, and this whole experience has put a huge amount of pressure on her.
"She has always come across as confident and self-assured, but the reality is she has the weight of the world on her shoulders and is very shaken."