Andreas Hinkel insists Celtic's world-wide reputation and the chance to resurrect his international career tempted him to snub German giants Borussia Dortmund for the Parkhead side.
The 25-year-old right-back signed from Sevilla last week for a fee reported to be just under £2million, rejecting the chance to return to the Bundesliga where he once starred for Stuttgart.
The 17-cap defender lost his place in the German squad after failing to oust Brazilian Daniel Alves from the Spanish team's line-up but is looking to relaunch his career at Celtic Park.
Speaking through his interpreter Marcus Bahnsen, he said: 'The whole world knows this club and its traditional colours of green and white.
'They were the first British club to win the Champions League (then European Cup) so I know the club's history and its importance.
'I had the opportunity to visit the club last week and the level of professionalism and organisation that I found led me to make the decision to sign. Celtic is the perfect club for me.
'Celtic's recent Champions League record is part of the decision.
'Five years ago I played for Stuttgart against Celtic and everybody knows that Celtic are always playing at the top level.
'I want to be part of the national team again and if I play well then I will automatically be part of it.'
Celtic manager Gordon Strachan insists Hinkel ticked all the boxes when it came to selecting the latest addition to his squad.
The Hoops boss, who confirmed that Hinkel would be in the party for the Scottish Cup tie against Stirling Albion at Parkhead on Saturday, said: 'We have been looking at Andreas since the start of the season, so it's been a long time.
'Obviously we remembered that he played for Stuttgart against us but we did our homework.
'Our scouts have done a fantastic job and everybody was positive.
'Andreas is an all-rounder. We were attracted by his professionalism, his attitude, the whole package.'