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Christie Brinkley, John Mellencamp

FAMEFLYNET PICTURES

Just a casual dinner or something more?

That's what fans are asking after photographers captured Christie Brinkley and John Mellencamp enjoying dinner together earlier this week.

On Monday night, the duo stepped out for a meal at The Bowery Hotel in New York City that ultimately left the supermodel smiling for the cameras.

Brinkley opted for a casual look with denim jeans, sneakers, a blue scarf and yellow jacket. Meanwhile, the "Jack & Diane" singer chose to wear ripped jeans, a peacoat and boots.

While the pairing may be a surprise to some, something that is far from shocking is Brinkley's gorgeous look at 61 years young.

Although her skincare line with HSN may be partly responsible for her great skin, Brinkley recently opened up to Elle.com about many of her beauty secrets.

"[Start] with a healthy diet—nutrition is an amazing way to contribute to your own well-being, and, of course, exercise and attitude," she explained. "Adopting a really positive attitude can work wonders to adding years to your life, a spring to your step, a sparkle to your eye and all of that."

As for those growing reports that this Monday night out could be a date, it's simply too early to tell. Besides, some still think Mellencamp could have a soft spot for ex-girlfriend Meg Ryan.

"Meg's an angel. She's an angel sent to me, and I'm very happy," he shared on Today. "And, you know, nothing's over ‘til it's over."