Yoona is a pretty prep, ain't she?

Quirky Boyfriend preps!

Preppy Park!

Nine preppy beauties in a row!

EXO cleans up pretty and preppy!

Goo Hara is so pretty, especially in her prep look!

Seven Infinite preps? How hot do they look?

Lee Teuk isn't the cutest prep, but he does pull the look off!

Yoo Seung Ho went all out preppy and I'm so distracted by all the preppy adorableness!