Nothing says young love like wearing your best guy's letter sweater.

But seeing as it isn't 1952, and Justin Bieber and Selena Gomez don't attend an actual high school, how about wearing one of his infamous purple plaid shirts?

Gomez was sporting a Bieber button down as she made her way out of the ITV studios in London, England. She's been all over the world promoting her latest film "Monte Carlo" for a few weeks now and is marking her territory via a wardrobe choice.

Earlier this month, during the New York City leg of the promotional tour, she and her singing sensation beau were able to spend some time together. He attended the film's premiere and the duo were spotted all over the city. On July 1, the pair emerged from their hotel hand-in-hand to a sea of fans and awaiting paparazzi.

What was Justin wearing for this flash bulb frenzy? This purple and black plaid shirt. So romantic.