First and foremost (and yeah, some spoilers ahead): Thor (Chris Hemsworth) comes back somewhat paunchier this time around (who can relate), but ready to take back the universe as he struts into the hanger where Iron Man (Robert Downey Jr.), Ant-Man (Paul Rudd), Captain America (Chris Evans), and the Incredible Hulk (Mark Ruffalo) are preparing their time machine to the sounds of The Rolling Stones. As a killer hook and Mick Jagger’s shredding vocals echo throughout the room, the Stones’ frontman, as if channeling Thor himself, asks, “What’s it all about? I guess it just reflects my mood.” The song—“Doom and Gloom,” the Stones’ jaunty single off their 2012 greatest hits compilation GRRR! — has a rollicking, dark sense of humor, complementing Thor’s own devil may care attitude. Weighed down and haunted by failure and the results of Infinity War, Thor sports sweats, grizzled hair, a beard, and sunglasses that hide his perpetual, depression-fueled hangover.