Sir Rod Stewart and Howard Jones have posed together in a pictured outside ABBA Voyage in London.
The Scots rocker, 78, shared an image on his Instagram story as he stood alongside Things Can Only Get Better singer Jones, 67, at Olympic Park and captioned it: "The boys".
Both men looked rather formal as they wore suit jackets and smiled for the camera.
On Wednesday night, Rod and his children Alastair, Renee and Liam gather edfor an outing at Parkhead as they watch their beloved Celtic beat Livingston 3-0.
They were joined by Liam's pregnant girlfriend Nicole Artukovich. Alastair shared images of them taking in the match to his 14.4k followers and fans on Instagram.
Fans have been quick to react, with one person posting: "Great pic and a cracking game."
Another added: "Glad you had an amazing time Rir Rod Stewart and family we absolutely love you all." A third added: "Brilliant pic," with a green love heart emoji.
Later in the evening Liam was pictured holding up Celtic merch for his unborn child.
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