R&B divas Kelly Rowland and Keri Hilson shared the stage at “Vh1 Divas” to honor Donna Summer. Channeling the late diva with her big curly hair, Kelly kicked things off with “Bad Girls,” as Keri followed with “She Works Hard for the Money.” The shows host, Adam Lambert, then joined the ladies for the grand finale of “Last Dance.” Catch the tribute performance below…