Madonna is feeling nostalgic!

The 56-year-old singer took to Instagram this week to share a new pic of her son Rocco channeling her ex-husband Sean Penn's classic "Fast Times at Ridgemont High" stoner, Jeff Spicoli.

"Jeff Spicoli is alive and well in the South of France! #boom #fuzzy," she captioned the cute candid.

In the pic, 14-year-old Rocco is showing off his stomach in a Hawaiian shirt, just like Spicoli himself. He's even rocking the character's sun-kissed, flowing blonde locks! 

Madonna and Penn were married from 1985 to 1989 and have been on good terms for years. They were even spotted together a number of times, including during a trip to Haiti. 

The "Vogue" songstress celebrated her 56th birthday over the weekend, posting some pics from her 1920s-style soiree.

Madge looked the belle of the ball in a beaded flapper dress and a sparkling headband.

Click "Launch Gallery" below to see more photos from her birthday bash, including pics with DSquared2 designers Dean and Dan Caten, Givenchy's Riccardo Tisci, Kate Moss and Madonna's adorable kids, David and Mercy.

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