The telly singer said he’d written to the FM to declare his love of Scotland with the song “Our Land”.
Just days after being axed from the show he proposed it would be “perfect” for the SNP to use.
Tagging Ms Sturgeon on a number of social media sites, Ferdinand plugged his cheesy ballad.
Beside a tartan-clad picture of himself in the countryside, the 62-year-old wrote: “Nicola Sturgeon, as a proud Scottish citizen of this song I co-wrote would be perfect song for the SNP to use!
“Lots of love from Ferdinand Rennie.”
The song, performed and co-written by Ferdinand, is described as a “rousing celebration of all things Caledonian”.
In a previous statement, Ferdinand, from Dunoon, said he’d sent the song to the First Minister to mark St Andrew’s Day.
He said: “This song is really a tribute to all that we love about this country.
“The thought of the UK leaving Europe is heart-breaking for someone from Austria like me who has been given such a warm welcome here and that is why we have sent the song to the First Minister.
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“I really hope she likes it.”
The ballad includes the uplifting chorus: “Ours is the land of legends.
“Ours is the land of dreams. Our land will always remember. To our land we will always return.”
We previously told how Austria-born Ferdinand was short-listed for the country’s Eurovision song entry after performing songs around the world.
Now based in Dunoon, he was embroiled in the latest Britain’s Got Talent ‘fix’ row after he claimed he’d been stitched up.
He spent hours sitting in a waiting room only to be rushed onto the stage, deal with sound issues and be told by Simon Cowell that he “murdered” his favorite song.
The musician had asked producers if he could perform his ballad version of The Greatest Showman hit Never Enough but he did a dance version instead.
While the audience and judges David Walliams and Amanda Holden loved Ferdinand’s cover version, Simon hated it and said that his favorite song had been ruined.
A Scottish Government spokesman said it was a matter for the SNP.
An SNP spokesperson said: “Don’t think we have anything to say on this – our focus is on the election.”
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