VH1 has widened its definition of diva this year to include none other than Adam Lambert, who will host the network’s live tribute concert to Whitney Houston and Donna Summer on December 16. “I’m so thrilled to be hosting VH1 Divas this year,” Lambert said. “I have a feeling it’s going to be the most fabulous concert of the year! And LIVE!! Get ready for some amazing performances, killer fashion, and fierce divas!” Those “fierce divas” include Miley Cyrus, Ciara, Demi Lovato, Jordin Sparks, and Kelly Rowland. I guess Beyonce was busy.