4Minute will provide a free bus service as part of their new album promotions for “Volume Up.”

Starting from April 11, 4minute will run a free bus wrapped in 4minute’s images for four weeks around four different spots in Seoul. The stops include some of Seoul’s most crowded areas, including Gangnam, Myung Dong, Hongdae, and Jamshil, taking the bus in a route that resembles the number “4.”

The service will be provided five days a week from Tuesday to Sunday, from 1PM KST to 9PM KST. The bus will be covered in 4Minute’s new album posters, with lines that read, “4mintue’s Free Bus! 4 Free! 4 Real!” Passengers on the bus will get to enjoy 4minute’s new album photos, songs, and music videos during their ride.

Meanwhile, 4minute is also planning to jump on the bus without any warnings and hold a guerilla event with the passengers. If you’re going to be around the area, this may be your lucky chance to meet the 4minute girls in person!