Jessica Simpson & Eric Johnson's Daughter
Maxwell Drew showed off her "6 a.m. curls" during picture day at school.
Prince William & Prince George
Stepping in for pregnant Kate Middleton, the beloved royal accompanies his 4-year-old son to his very first day of school at Thomas's Battersea in London.
Jennifer Lopez & Marc Anthony's Twins
The musically talented co-parents twin's Max and Emme start off fourth grade in matching uniforms.
Vanessa & Nick Lachey's Kids
Camden, 4, and Brooklyn Lachey, 2, rock their pre-school entrance in style!
Jessica Simpson & Eric Johnson's Daughter
Mini-me alert! 5-year-old Maxwell Drew is all smiles before heading into kindergarten.
Jessica Alba & Cash Warren's Daughters
With baby No. 3 on the way, it's safe to say these celeb parents are cherishing every moment with Honor and Haven.
Kelly Ripa & Mark Consuelos' Son
All grown up! The daytime talk show host can't believe 14-year-old Joaquin is starting high school, writing, "How is the newborn baby a freshman in high school???? HOW???"
Jamie Lynn Spears' Daughter
The former child star and country singer's 9-year-old little girl, Maddie Aldrige, strikes a pose ahead of fourth grade.
Kendra Wilkinson & Hank Baskett's Kids
"2nd day of 2nd grade. GO HANK GO!" the former Playboy model captioned this snapshot of 7-year-old Hank Jr. and 3-year-old Alijah.
Sarah Jessica Parker & Matthew Broderick's Daughters
The Sex and the City alum sends 8-year-old daughters Marion and Tabitha off to third grade with a heartwarming photo.
Casey Wilson's Son
"Every single emotion pouring forth!!!" the actress captioned this pic of her little guy Max eager to start preschool.
Jodie Sweetin's Daughters
The Fuller House star is so proud of Zoie and Beatrix, writing, "Happy first day of school to these two awesome little ladies!! I am so proud of them! Although, I can't believe they're in 4th and 2nd grade!! How did that happen?! #momlife"
Katherine Heigl & Josh Kelley's Daughter
Time flies when it's time to go back to school! Just ask Heigl's 8-year-old, Nancy Leigh.