The lights went out after Sunrise's entertainment reporter Nuala Hafner asked the 'Hot n Cold' singer if she admired any Australian artists.
Hafner said: "We thought someone must have tripped over the lead to the lights but we later found out Katy's manager pulled the plug because he thought I had asked an offensive question."
It was later discovered that Perry's manager had misheard and thought she was asking about the star's recent trademark dispute involving fashion designer Katie Perry.
Hafner added: "[Katy] was just delightful and very keen to make amends. She calmed him down and, after several apologies, the interview resumed."
Perry apparently sued the similarly-named clothing designer earlier this year for the use of her name on her fashion label but later dropped the application.