The singer was blown away by Ivy Paige, who performed Peggy Lee’s track Why Don’t You Do Right, for her blind audition.
In fact, he was so surprised by her performance that he forgot his own name.
After her song came to an end, Olly asked: “I mean, what is your name?”
“What’s your name?” the 37-year-old hit back.
“My name’s Olly,” he replied, pointing to the base of his chair and forgetting what was written below his seat.
Stunned by Olly’s reaction, fellow judge Jennifer Hudson corrected: “Your name’s on the back babe. It’s on the back.”
Ignoring her remark, the former X Factor host pointed to the bottom of his chair again and quizzed: “What does that say?”
“I want you,” Ivy responded.
Olly cheekily replied: “Well you have me,” before he suffered a technical blunder. “Oh, my mic has gone.”
“You can share mine,” the burlesque and cabaret performer offered as she strutted towards him and climbed onto his chair.
The 33-year-old lost his blazer when he stripped off during Ivy’s blind audition and threw it on the studio floor.
His actions and “flirting” left viewers at home shocked with many rushing to social media to comment on his behaviour.
“Ivy Paige was good and that was the most flirting we’ve ever seen on #TheVoiceUK. Why am I not surprised it involved Olly,” one viewer shared.
While another added: “Disappointed Olly turned. Can’t bear to watch them flirting it’s cringe #TheVoiceUK.”
A third commented: “Loving Olly trying to flirt #TheVoiceUK.”