Olivia Wilde sums up parenting with one less-than-perfect Instagram pic.

Hairstyles of the rich and famous.

Actress Olivia Wilde, 31, has a one-year-old son and the hairstyle to match.

In a picture every mum of a little kid can relate to, Wilde displayed a barnet that probably hadn’t seen a comb in quite some time.

“I call this hairstyle, ‘keep the kid alive’,” she wrote.

“Products you’ll need: sweat, string cheese, diaper rash cream, chewed up crayon, snot, and an enthusiastic spritz of panic.”

Unrelated: how cool is that fish wallpaper behind her? Image via Instagram.

Wilde has never been one of those celebrities to shroud her son in secrecy.

Shortly after giving birth, she posted to Twitter: “Ladies and gentlemen, Otis Alexander Sudeikis has LEFT the building! (I’m the building).”

“The building” is engaged to Otis’s father, actor Jason Sudeikis.

Olivia Wilde and Otis hug it out. Image via Instagram.

Scrolling through Wilde’s Twitter feed, I like her more and more.

“My son says goodbye to his toes every time I put his socks on,” she tweeted a few days ago.

That’s it! I’ve decided: I forgive her for Drinking Buddies.

Well played, Olivia.

Check out a gallery of Olivia Wilde, generally with pretty good hair.