On Sunday's show Sharon can be heard asking Louis "what's her name?" through her teeth before eventually introducing Saara.
The cameras were focussed directly on Sharon for the awkward moment.
"It's just me, I'm a bit dotty... but drinking? No thank you," she told Susanna Reid on Good Morning Britain.
During the interview she laughed as co-host Piers Morgan asked if she actually had any idea who she was mentoring.
She put it down to "blanking" and says she is "the worst in the world" with names.