B2ST's Hyunseung recently took a selca while commuting, and was surprised to find that it was photobombed. On September 10th, Hyunseung tweeted, "Silly Doojoon", and uploaded a photo. In the picture, Hyunseung smiles slightly at the camera while wearing retro frames and a hat. Though his cute charms certainly garnered praise, netizens were more interested in the mysterious guest at the top left corner of the photo. Fellow member Doojoon could be seen posing cheekily for the camera from the backseat. Netizens stated, "Jang Hyunseung got really cute", "Yoon Doojoon is so funny", and "I wish Doojoon would mysteriously appear in my pictures." In related news, B2ST will take part in the 'Musilympic the One' concert at the Jamsil Stadium on September 30th. Source: Osen