Dennings introduced The Black Keys at the 55th Grammy Awards on February 10, 2013. She appeared in a music video for the Hanson single "Get the Girl Back", alongside Nikki Reed. The actresses are close friends and are both fans of the pop group. The video premiered on April 4, 2013. In 2013, Dennings reprised her role as Darcy Lewis in the superhero sequel film "". She worked on the film and "2 Broke Girls" at the same time, flying to London to film for six months between breaks on her CBS sitcom.