Macy Gray concerned Lorraine viewers with her "erratic" behaviour and was accused of being "drunk" live on air.
Fans branded the awkward interview "car crash TV" as she continued to be distracted, which included asking Lorraine Kelly for directions to another interview, and questioning why she had to be up so early for the chat.
Macy also referred to herself as a "vampire" after being asked about her recent stay in hospital.
"I'm a vampire," Macy told Lorraine. "I needed a blood transfusion... I just want to bite people! But that's illegal."
"Maybe don't do that," Lorraine suggested with an awkward laugh.
The legendary singer then questioned how early the interview was: "Why do you guys go on so early?"
Shocked viewers flocked to Twitter to comment.
One tweeted: "Car crash tv . Poor #Lorraine . Keeping it going . Bless your heart!"
While another commented: "Gosh stop the interview there’s something wrong with her! #lorraine."
A third questioned: "Is macy grey out of it on #Lorraine @GMB."
"Is #macygray ok ♀️ #Lorraine," another asked.
One wrote: "How can they let Macy Gray on tv in that state??? #Lorraine."
Another questioned: "#Lorraine what is Macy Gray on? Shocking."
"Oh dear Macy Gray, step away from the mini bar...... #Lorraine," a viewer remarked.
Mirror Online has contacted both ITV and Macy's reps for comment.
*Lorraine airs weekdays at 8.30am on ITV
