Macaulay Culkin had fans doing a double take over the weekend, and not in a good way!

The former child star was spotted on the streets of NYC filming scenes for The Jim Gaffigan Show, though we almost didn't recognize him. Wearing a red plaid shirt, grey blazer and black-rimmed glasses, the actor looked disheveled with messy hair and chipped red nail polish.

RELATED: 'Home Alone' Co-Stars Catherine O'Hara & Macaulay Culkin Had an Adorable Reunion!

macaulay culkin splash

This isn't the first time the 35-year-old has shocked fans with his unkempt appearance, making it clear that a lot has changed since Kevin McCallister was left home alone almost 26 years ago.

RELATED: Jason James Richter From 'Free Willy' and 17 More Child Stars All Grown Up!

Check out the gallery below to see what the rest of the Home Alone cast looks like now!