Selena Gomez: Subway Sandwiches with Justin Bieber!

Selena Gomez and boyfriend Justin Bieber keep it low key with a romantic picnic overlooking the city at Griffith Park on Wednesday afternoon (April 4) in Los Angeles.

PHOTOS: Check out the latest pics of Selena Gomez

The happy couple munched on foot-long Subway sandwiches and Lay’s potato chips.

Justin‘s new single, “Boyfriend,” entered the Billboard Hot 100 at No. 2, selling a whopping 521,000 copies this week, making it the fourth highest sales week for any digital song. The record still belongs to Flo Rida‘s “Right Round,” which sold 636,000 copies in 2009.

30+ pictures inside of Subway sandwiches with Selena Gomez and Justin Bieber…