Adoring fans went weak at the knees as he performed hits from his new solo album Since I Saw You Last at the SSE Hydro.
The Take That frontman and former X Factor judge stopped off in the city as part of his 17-date album tour.
Thousands of women gathered to hear him sing a mixture of old and new material, and bust a few shapes into the bargain.
Since I Saw You Last is the singer/songwriter's fourth solo album and was released in November debuting at number two in the UK Album Chart.
It features a duet with Elton John written by Gary, entitled Face To Face.
The album's lead single, Let Me Go was released a week before the album, and became his 21st UK top three single.
Gary's last solo album Twelve Months, Eleven Days was released in 1999.