Despite claiming to despise everything Western, other jihadis were seen wearing shirts emblazoned with the names of football legends including Christiano Ronaldo, Lionel Messi and Mario Gotze.
The men were rounded up with ISIS on the brink of defeat in Iraq after being driven out of the city of Hawija.
Iraqi government forces stormed Hawija, killing 196 jihadists and recapturing 98 surrounding villages.
Dozens of ISIS fighters, pushed back by Iraqi forces, then handed themselves in to the Kurdistan Regional Government in the north.
Their defeat means the only territory ISIS has left in Iraq is a stretch alongside the western border with Syria.
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The latest offensive was carried out by US-backed Iraqi government troops and Iranian-trained and armed Shi’ite paramilitary groups known as Popular Mobilisation.
Iraqi Prime Minister Haider al-Abadi said: “I announce the liberation of the city of Hawija. Only the outskirts remain to be recaptured.
“This is a victory not just for Iraq but for the whole world.
“We should chase this terrorist organisation everywhere.”
Joint operations commander, Lieutenant-General Abdul Ameer Rasheed Yarallah, said: “The army’s ninth armoured division, the Federal Police, the Emergency Response division and Popular Mobilisation liberated Hawija.”
The United Nations said around 78,000 people were trapped in the area north of Baghdad before Iraq launched an offensive on September 21 to dislodge drive the militants away.
ISIS continues to control the border town of al-Qaim and the region surrounding it.
It also hold parts of the Syrian side of the border but the area under its control is shrinking fast as fighters retreat in the face of a US-backed, Kurdish-led coalition and Syrian government troops with foreign Shi’ite militias backed by Iran and Russia.
The militants’ leader Abu Bakr al-Baghdadi released an audio recording last week that indicated he was alive, after several reports he had been killed.
He called on his followers to keep up the fight despite the setbacks.