The SNP leader admitted the word "national" could be "hugely problematic".
WATCH & LISTEN: Singing Scottish Cop Goes Viral
A policeman entertained a pub crowd with a karaoke classic after being called in to deal with a brawl.
Sergeant Jon Harris belted out Gloria Gaynor's I Will Survive while in full uniform to cheers from drinkers at Glasgow's Waterloo Bar.
Mr Harris was called to the Argyle Street pub on Wednesday evening following reports of an alleged assault, and a 23-year-old man was arrested.
The policeman later agreed to take to the stage and a senior officer has credited him for "helping defuse any simmering tensions''.
Chief Inspector Mark Sutherland, area commander for Glasgow city centre, said: "A full and thorough investigation led to the arrest of a 23-year-old male, who is expected to appear at Glasgow Sheriff Court on Thursday.
"Once the inquiry had concluded and the victim's safety ensured, Sgt Jon Harris from our city centre community policing team was encouraged to participate in karaoke ongoing in the pub.
"Sgt Jon took to the stage, which helped to defuse any simmering tensions in the pub.
"I was pleased to see that once the incident had been professionally concluded, my officers were able to share a lighter moment with those who remained in the pub.''
Peter McKenna-Boyd filmed the performance.
He has been talking to Heart
A police watchdog probe was launched after the remains of the 52-year-old were found in a house in Dumfries in February last year.
The accident happened at about 7.50pm on Thursday in Moodiesburn, North Lanarkshire.
More than 70 firefighters were needed to bring the blaze under control at Blochairn Fruit Market in the early hours of Thursday.
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