UFC Star Conor McGregor has paid tribute to Celtic at the Hydro.
The Dublin born fighter said the hoops were the only team worth talking about.
Then led the crowd in a rendition of 'Glasgow's green and white'.
Bet the Rangers fans in the crowd were delighted with that.
You can watch here.
An audience with Conor McGregor in Glasgow. THIS is how you open a show! pic.twitter.com/yHEjM43WPP
— Fight Disciples (@FightDisciples) September 29, 2017
McGregor has risen to become one of the most famous faces in sport.
And his superfight against Floyd Mayweather also made him one of the richest with a rumoured purse of over £100 million for each fighter.
Days before the fight he showed his support for Celtic with a tweet praising a Green Brigade banner.