While previous single, the pop-tastic "All Night" which dropped last week, follows the sing-along anthem that "I Love It" paved the way for, "Girlfriend" has a slightly more electronic vibe.

"All I need in this life of sin is me and my girlfriend," Jawo and Hjelt sing on "Girlfriend." Meanwhile, the video showcases the duo living this "life of sin" as they speed down the highway in a convertible, run onto railroad tracks and sneak into train cars — something you'd only do with your best friend.

In an interview with HungerTV, the girls talk about their time train-surfing in the new video. "We love trying new stuff and as soon as things get a little bit too safe or calm we just throw ourselves out there and mix it up a little bit, and we always manage to get out alive," Hjelt said.

Jawo confessed that the filming of the video was dangerous.

"The train was moving but we had a lot of safety nets, even though I would have done it without them," Jawo said. "We had stunt men teaching us who were taking it really seriously and were like 'Don't jump if you don't have the safety nets on you!', which was good."