The Hills' Heidi shared the sweet photo with fans last night (31 July) and it shows her posing alongside her elder sister Holly.
The pair are headed off to school after the holidays and although Holly, who also appeared in The Hills, is dressed rather conservatively, Heidi has gone all out to impress!
The former Celebrity Big Brother star is wearing a frilly denim skirt, white blouse and a very fetching hat decorated with giant flowers. How very Blossom Russo!
Heidi is currently visiting her family back home in Colorado and it appears the picture is still hanging on the wall for all to see. Aww!
Posting a snap of it on Instagram, she said: "#TBT first day of school styling with @halzbalz!"
Since arriving in Crested Butte, the town Heidi grew up in, she has been keeping fans up to date with what she's been doing. On Wednesday (30 July), Heidi had "the best day ever" when she went horseriding with her dad Bill.
Who was your favourite star of The Hills? Tell us below, as the best comment from across the website each week wins £50!