Haim recruited a bushel of celebrity pals for its new video, which updates the stomping "Days Are Gone" cut "My Song 5" with a verse from A$AP Ferg. Front and center among those special guests is "Saturday Night Live" star Vanessa Bayer, playing a conceited, Springer-esque daytime talk-show host named Dallas Murphy. (Bayer recently interviewed two of the Haim sisters for her Web series "Sound Advice.") Kesha appears as a cat-obsessed guest on the show, while Ferg is caught up in on-air relationship drama. See if you can spot Vampire Weekend frontman Ezra Koenig in the audience. Grimes, Big Sean and producer Ariel Rechtshaid float through as well, because this Haim song is so marvelous that everyone wants a piece of it.