Go out of exit 3 @ Hapjeong station (Line 2 / 6) and walk straight in the direction of Seokyodong intersection. At BoBo Hotel (보보호텔) turn right. Across from BoBo Hotel you will see an Angel-in-us coffee shop; Veloso is in the basement of the building next to that (called Studio Building).
Veloso is a basement live hall that can hold about 120 people sitting or 200 people standing. They aim to showcase 'all kinds of music'.