Billy Joel reunited with his ex-wife Christie Brinkley at his concert on Thursday night (07Aug14) by singing his hit song Uptown Girl to the woman who starred in his video more than 30 years ago.

The supermodel had front row seats to Joel's concert at New York City's Madison Square Garden and during his encore, he sang his 1983 hit single, which was inspired by Brinkley.

In a video posted on YouTube.com, Joel is seen calling on the camera crew to get a shot of Brinkley dancing and singing along to her ex-husband while he performed the track, and at the song's end, Brinkley is shown on the jumbo screens behind Joel with a huge grin on her face.

The blonde beauty later took to Instagram.com to post a photo of herself with daughter Sailor enjoying the gig from their prime seats, and added the caption, "He's still got it."

Brinkley and Joel divorced in 1994 after a nine-year marriage and have one daughter together, singer Alexa Ray Joel.