The veteran star was greeted with cheers as he took to the stage at the SSE Hydro.
And the 70-year-old's biggest supporters - dubbed Fanilows - sang along to every word.
Among the crowd-pleasers belted out by the American singer were Could it Be Magic, Mandy and Copacabana (At The Copa). He will go on to play Cardiff and Southampton before his UK tour finishes at the O2 Arena in London next Monday.
Picture: Jamie Simpson