The 61-year-old model was spotted enjoying dinner with the 63-year-old singer - who has been single since splitting from Meg Ryan last year - in New York City on Monday (14.09.15), fuelling speculation they are dating.
The casually-dressed pair - who had arrived separately - appeared happy and relaxed as they left the Bowery Hotel and got into the 'Jack & Diane' singer's chauffeured car.
An onlooker told 'Entertainment Tonight' John seemed affectionate towards Christie, touching her back as they walked.
Christie - who has been married four times and has three children, Alexa Ray, 29, Jack, 20, and Sailor, 17 - has previously admitted it is hard to find love with someone her own age.
She said: ''It seems like during this period that most of the guys are like 38, 39, 42, like that sort of age group.
''It's funny because I think that at that age they have nothing to prove. They're very confident and do just what they want to do. [With] men my age I feel quite invisible to them.
''I think a ten year span is fine.''
Remembering the iconic Toots Hibbert (1942-2020).
'The Great Escape' was released on this day (September 11th) in 1995.
We were actually quite excited about Marilyn Manson's WE ARE CHAOS. The question is whether or not we were sorely disappointed...
World Suicide Prevention Day is the day to remember some of the world's greatest artists.
Few bands reach the legendary status of of the greatest rock 'n' roll band in the world.
With his forthcoming album 'Heavy is the Head' set for release this December, Stormzy has dropped an animated video for a new single entitled...
It's time to start letting women be empowered by their sexual attitudes.