The History of the Eagles tour delighted fans, and although their very early numbers were unfamiliar to some, they made up for this by turning the first portion of the show into a snapshot of where it all began.
Sitting around on amplifiers and boxes they explained how their early songs were written.
And each song saw a new band member appear on stage.
Don Henley and Glenn Frey started out alone before being joined by Bernie Leadon,Timothy B. Schmit, and Joe Walsh.
The five then began belting out the band's well-known hits and had the audience singing along for the rest of the show.
Anna-Marie Gill and John Slaven really enjoyed the Eagles and were impressed with the new Hydro.
Anna-Marie from Bishopbriggs said: "I think it promotes Glasgow having the concerts here.
"I didn't know the first couple of songs but I knew most of them from California onwards.
"But then it's a history tour so they are going to tell you how they met and how it came about."
John from Stepps added: "The sound quality is excellent.
"I've listened to the Eagles for a few years and I didn't get to see them the last time they were in Glasgow.
"I've wanted to see them for a while and it's been excellent."
Georgie Cox from East Kilbride and Irene Shakarji from Clarkston are huge Eagles fans and have seen then every time they have performed in Glasgow since 1975.
The Hydro gig is the first indoor gig the Eagles have played in Glasgow for a while and although the band told the crowd they were glad to be out of the rain, Irene felt there was a real change in atmosphere due to moving indoors.
She said: "It's been fabulous but I miss the atmosphere of the Hampden outdoor concerts.
"We want to get up and dance."
Georgie felt the history aspect of the show gave it an interesting "slow build-up".
Both women loved the show and got the chance to stand up and dance during some of the faster songs.
Chris and Laura Walker from Helensburgh say the show was well worth coming to.
Chris said: "It's fabulous" and Laura loved their rendition of Lying Eyes.
Kevin and Diane Devine came down for the show from Aberdeen.
They said it was hard to pick just one aspect of the show as a highlight as it was all brilliant.
And Diane enjoyed the history theme.
She said: "It's like listening to the story of my life.
"They are playing songs from 1975 and I can remember listening to them as a young girl."