The stunning Fifth Harmony girls impressed at their first Summertime Ball This image appears in the gallery:One Direction, Ariana, Avicii & More! The MUST-SEE Pictures From Capital's Summertime Ball 2015 110. The stunning Fifth Harmony girls impressed at their first Summertime Ball Picture: Joe Okpako 171 images See the full gallery: One Direction, Ariana, Avicii & More! The MUST-SEE Pictures From Capital's Summertime Ball 2015