Harper and Gideon aren't so little anymore!
Neil Patrick Harris posted a new Instagram photo on Sunday, June 12 of his five-year-old twins playing on a playground — and we can't get over how big Harper and Gideon look in the new side-by-side pic!
"Harper and Gideon graduated from the amazing Weekday School on Friday. Now they're just monkeying around. #NextStopKindergarten," the 42-year-old actor captioned the snapshots.
Click through the gallery below to see more of Hollywood's cutest kids!