Tyrese performs at the BET Awards (Photo by Matt Sayles/Invision/AP).D'Angelo, right, performs at the BET Awards (Photo by Matt Sayles/Invision/AP).From left, Angela Bassett, Lela Rochon, and Loretta Devine speak during the memorial for Whitney Houston (Photo by Matt Sayles/Invision/AP).Mariah Carey speaks during the in memoriam to Whitney Houston at the BET Awards (Photo by Matt Sayles/Invision/AP).Brandy performs during the in memoriam for Whitney Houston at the BET Awards (Photo by Matt Sayles/Invision/AP)Nicki Minaj, second left, and 2 Chainz perform at the BET Awards (Photo by Matt Sayles/Invision/AP)Kevin Hart accepts the award for best actor at the BET Awards. Presenter Taraji P. Henson watches at right (Photo by Matt Sayles/Invision/AP).Chante Moore performs during the in memoriam for Donna Summer at the BET Awards (Photo by Matt Sayles/Invision/AP).Chris Brown accepts the award for best male R& B at the BET Awards (Photo by Matt Sayles/Invision/AP).Usher performs at the BET Awards (Photo by Matt Sayles/Invision/AP).Frankie Beverly, center, accept the lifetime achievement award at the BET Awards (Photo by Matt Sayles/Invision/AP).