THIS is the bizzare moment that Hollywood actor Gerard Butler celebrates with a Bulgarian football team over their win against fierce rival.

The Paisley-born actor has appeared in footage taken in Levski Sofia's dressing room after they beat rivals CSKA Sofia on Tuesday night.

Butler, 48, might be a Celtic fan but the A-lister appears to have developed a soft spot for the side who beat their rivals 4-2 on aggregate to progress to the final of the Bulgarian Cup.

In the video Butler jokes: "Thank you. I will be back next week. You better win again."

He then poses with the players for selfies.

The hunky star has been to Bulgaria several times in the last year to shoot different productions including Code: Angel. In addition to playing the lead role, Butler is also a co-producer of the film.