It’s not summertime in Minnesota without a rooftop party. This Thursday, the Walker Art Center’s weekly Thursday-evening event gets in on that tradition. In addition to free admission to the museum’s galleries downstairs, there’ll be a variety of fun hosted on the terrace. Check out downtown views while listening to jazzy lounge pop from Nadine, dance bangers from City Counsellor, and Hello Psychaleppo’s mashup of traditional Middle Eastern beats, dubstep, electro, and trip-hop. There will be other performances and hands-on art activities throughout the evening, the drinks will flow from the cash bar, and artsy skyline mini-golf will be open (but make sure to make reservations).