Returning the favour, Pitbull joined Ne-Yo on stage to perform 'Time Of Our Lives' This image appears in the gallery:One Direction, Ariana, Avicii & More! The MUST-SEE Pictures From Capital's Summertime Ball 2015 163. Returning the favour, Pitbull joined Ne-Yo on stage to perform 'Time Of Our Lives' Picture: Danny North 171 images See the full gallery: One Direction, Ariana, Avicii & More! The MUST-SEE Pictures From Capital's Summertime Ball 2015