Macaulay Culkin turns 40: ‘Hey guys, wanna feel old?'

The boy who always finds a way to get left behind is now... 40 years old.

“Hey guys, wanna feel old?” Macaulay Culkin tweeted on Wednesday. “I’m 40.”

The New York City-born actor who played Kevin McCallister in the original “Home Alone” movies added: “You’re welcome.”

Culkin has largely kept a low profile since his days as a child star. He appeared in “Home Alone” in 1990 and “Home Alone 2: Lost in New York” in 1992.