It has rumbled on throughout the summer, but Celtic boss Brendan Rodgers finally got his man earlier this week with the arrival of Adam Idah from Norwich City.
The Republic of Ireland international was confirmed as a Hoops player on Wednesday evening, returning to the club following a stunning loan spell last season saw him score nine goals in 19 appearances - and the Celtic faithful are delighted to see their goal hero return to the East End of Glasgow.
With a transfer fee of £8.5million plus add-ons widely reported, Idah has become one of the most expensive recruits in the club’s history - but where would he place on the list of Celtic’s most expensive signings ever?
Here is the full list of Celtic’s top 20 most expensive transfers in history, from 20-1.
17. Jota - £6.5million
One of the most talented players the Scottish Premiership has seen in the last decade, Jota was an absolute steal at £6.5million when he was prized for Benfica in 2021. A vital cog in the Ange Postecoglou machine, he made Celtic a whopping £25million when he was sold to Al-Ittihad last summer. Sadly, his immense talent seems wasted in Saudi Arabia, where he sits on the bench and barely plays. | SNS Group
18. Christopher Jullien - £7million
Scored the winning goal in the Scottish League Cup final win over Rangers then...well, largely did little else due to injury. A costly signing, he played just 28 league games for the club after suffering terrible luck with injuries. Sold for under £1million to Montpellier, he has barely featured over the last year in Ligue 1. | SNS Group
19. Adam Idah - £8.5million
Should the reported fee Celtic are paying Norwich City be correct, he would become the second most expensive signing in the club's history. With reports stating the fee could rise to £9.5million in performance related add-ons, he could become THE most expensive signing in time. | SNS Group
20. Odsonne Édouard - £9million
Celtic's most expensive signing in their history? Step forward French goal-getter Odsonne Édouard. Originally joining on loan from Paris Saint-Germain, the Hoops shelled out huge money to make the move permanent, where he went on to score 89 goals for the club. Sold to Crystal Palace for a fee of £14million, the club got more than their money's worth and a tidy little profit to boot. | SNS Group