Drew Barrymore, who is well-known for her infectious energy, delighted the crowd with an unplanned dance on top of Letterman’s desk, showcasing her fun personality and drawing them in.

Aly Michalka, the talented musician and performer, most likely added her own charm and charisma to the performance beside her, even though the details of her look are unclear.

Thanks to their contributions to the exciting atmosphere of the show, Barrymore and Michalka undoubtedly helped to create a memorable moment for the audience.