Chrissy Teigen, Stephen Colbert, and Danica McKellar (Michael Loccisano/Theo Wargo/Kevin Winter/Getty Images (3))
In case you haven't heard, today is March 14. Or 3.14. Or, for the mathematically inclined, Pi Day.

Needless to say, the Internet is celebrating, especially on Twitter. And it's not just scientists and accountants cracking wise about the number muncher-friendly holiday. Stars from Chrissy Teigen and Danica McKellar to Stephen Colbert and "Sesame Street" staple Count Von Count have been sharing their thoughts, memes, and more.

Charlie Sheen with Sam, second from left, Lola, Denise Richards, and Richards' adopted baby Eloise. (Aguilar/Jones/PacificCoastNews.com)Charlie Sheen is known for his unfiltered rants, but at least in the past his targets have been adults.

On Wednesday, the "Anger Management" star lashed out at some underage enemies when he posted a lengthy Twitter message asking his 9.1 million followers to perpetrate some nasty pranks on the children who bullied his 9-year-old daughter, Sam. Sheen explained that his little girl, who's the elder of his two daughters with ex Denise Richards, was forced to leave private Viewpoint School in Calabssas, California, because she was so tormented by her fellow students.

Liam Hemsworth in Australia (Media-Mode)Things aren't looking any better for Miley Cyrus and Liam Hemsworth.

Following multiple reports this week that the couple has broken up, Hemsworth is clearly not yet ready to face the media. The 23-year-old will not be attending the world premiere of his new film "Empire State" omg! has confirmed.

Jessica Simpson might be a media mogul, but when it comes to spending time with her 1-year-old daughter, Maxwell, mommyhood comes first.

The "Fashion Star" mentor recently posted an intimate video on her website, promising an exclusive behind-the-scenes look at her fashion reality show -- but what we got was so much better! A cameo from Maxwell and Jessica's fiance, Eric Johnson.

The blond beauty took the cameras where they're usually not allowed, the makeup room (gasp!). Of course, it was the adorable little one that become the real star of the show.

Check out this vid to see which of Jessica's fellow "Fashion Star" mentors made Maxwell giggle!

Miranda Lambert and lil Andy (Instagram)You are looking at one lucky dog!

It was Miranda Lambert to the rescue this week when the country music superstar – and dog lover – saved an abandoned puppy from a scary fate on the side of an Oklahoma highway.

"I just picked this up on the west side of Tishomingo on hwy 22. Please contact Tish animal shelter if he is yours," the 29-year-old, who recently chatted with omg! about her “five and a half” rescue dogs (she co-owns one with her grandmother), tweeted Tuesday, along with this precious pic.

Julianne Hough. (Getty Images)Julianne Hough learned the hard way that expensive jewelry belongs either on you, or in a safe.

On Friday night, the "Safe Haven" actress reportedly parked her Mercedes at a friend's Hollywood apartment complex … and while inside, a thief reportedly broke into her car and stole $100,000 worth of jewelry given to her by boyfriend of nearly three years, Ryan Seacrest.

Chris Christie, R. Kelly, Bill Gates (D Dipasupil/Tommaso Boddi/MiguelTovar/Getty Image(2)/WireImage)

UPDATE: Tom Cruise is the latest A-List to be involved in the celebrity doxxing scandal.

Singer R. Kelly, New Jersey Governor Chris Christie, Microsoft founder Bill Gates, and convicted child sex abuser Jerry Sandusky are the latest public figures to have their credit information posted online in the celebrity doxxing incident which has gripped Hollywood, Washington D.C., and beyond.

What's one thing that three of these four latest victims have in common? Their credit reports from TransUnion were posted. While a couple of TransUnion reports had been published on the website in question earlier in the week, the majority of the reports had come from credit agency Equifax.

Nicki Minaj (Getty Images)Nicki Minaj showed up 13 minutes late to the first live show of "American Idol" on Wednesday night, claiming she was stuck in traffic.

"Which one of you gave Nicki the wrong directions today? Which one of you drained the fuel from her car?" host Ryan Seacrest joked, trying to stall and make the best of the situation.