Will Mendelson

Prince Harry became emotional after receiving dog tags from an injured marine at the end of a marathon walk around Britain on Sunday, Nov. 1 at Buckingham Palace -- get the details

Jessica Simpson shared an Instagram photo of herself and husband Eric Johnson dressed up as Christie Brinkley and Clark Griswold from the 1983 film National Lampoon's Vacation for Halloween -- see the pic!

Little Couple star Jen Arnold shared adorable Instagram snaps of her kids, Will and Zoey, dressed as a Ninja Turtle and Minnie Mouse for Halloween -- see the pics!

Lauren Conrad totally killed it as a zombie schoolgirl for Halloween, showing off her costume on Saturday, Oct. 31 -- see the pic!

LeBron James dressed up as Prince and performed his classic song "Purple Rain" in an impromptu concert at the Cleveland Cavaliers' Halloween party on Saturday, Oct. 31 -- see the pics and video!

Will Smith wrote a touching birthday message on Facebook to daughter Willow on Saturday, Oct. 31 -- read it now

Jennifer Lawrence reflected on her Hunger Games alter ego Katniss Everdeen and what the blockbuster film franchise has meant to her at a handprint ceremony in Hollywood, Calif., on Saturday, Oct. 30 -- see what she said

From Miley Cyrus to Nicki Minaj, celebrities posted photos on their Instagram accounts of fans dressed like them for Halloween on Saturday, Oct. 31 -- see the fun pics!

Heidi Klum, infamous for her lavish and extravagant Halloween costumes each year, dressed as Jessica Rabbit for her annual Halloween party at Lavo in NYC -- see the pic!

President Obama couldn't help but delight in the adorableness of a baby boy dressed up as Pope Francis at the White House annual Halloween party on Friday, Oct. 30 -- see the cute pic!

Naya Rivera shared the first photo of her baby boy, Josey Hollis, wearing an adorable Halloween costume on Saturday, Oct. 31 -- see the cute Instagram pic!

Alyssa Milano shared an Instagram photo of herself in a Wonder Woman costume for Halloween last year on Friday, Oct. 30, breastfeeding her then-baby daughter, Elizabella -- see the pic

Justin Bieber made a remix of Drake's single "Hotline Bling" and told fans to call an actual hotline to hear it on Friday, Oct. 30 -- get the details

Gisele Bundchen shared an adorable Instagram Halloween photo of her two kids dressed as The Hulk and Nemo on Saturday. Oct. 31 -- see the pic!

Reese Witherspoon and her daughter, Ava Phillippe, looked nearly identical at the American Cinematheque Awards on Friday, Oct. 30 -- see the photo!

Ariana Grande kept her cool after a fan threw a smartphone at her during her concert in Burbank, Calif., on Friday, Oct. 30 -- get the details

Jessica Alba shared an Instagram photo on Friday, Oct. 30, of herself dressed as Romy from the 1997 comedy Romy and Michele's High School Reunion alongside her best friend as Michele -- see the pic!

Kourtney Kardashian shared a cute Halloween throwback photo via Instagram on Saturday, Oct. 31, with sister Kim Kardashian -- see the pic!

Heidi Klum revealed to Ellen DeGeneres that she has just gotten over a case of lice, and that she got them from her kids -- get the details!

Justin Bieber walked out of a horrible awkward radio interview in Spain on Wednesday, Oct. 28 -- watch what went down now

James Franco showed off a tattoo of Emma Watson on his neck via Instagram on Wednesday, Oct. 29, but it's not what you think -- get the details and see it now!