The Rangers boss has been a long time admirer of the young winger and will be pleased to seal the deal.
Templeton's arrival marks the eighth signing of the summer after Dean Shiels, Ian Black, Fran Sandaza, Kevin Kyle, Emilson Cribari, Anestis Argyriou and Sebastien Faure.
The exciting young talent signed a four-year deal with the Light Blues at Murray Park late on Friday and moves for an undisclosed fee.
That came just 24 hours after the 23-year-old scored against Liverpool at Anfield and he only arrived back in Scotland on Friday evening.
He immediately made the trip to Auchenhowie to complete negotiations and seal a move to the 54-times Scottish champions.
We'll have the first reaction to Templeton's signing here shortly on rangers.co.uk and on www.rangerstv.tv