She paired the ensemble with jewels by Lorraine Schwartz and Ofira, a red Louis Vuitton bag and Krewe shades. She shared her look on Instagram, writing n the caption: "If I’m this obnoxious at 30, you can only imagine how EXTRA I was on “spirit day” at school."
Blake was joined at the event by her apparent BFF, Emily Blunt. This is one celebrity friendship we can certainly get behind.
Emily was somewhat more subtle in her sartorial V-Day statement, opting to wear a pair of gold heart-shaped 'hoop' earrings.
You've got to love Blake's commitment to the day!