Watch Gaga get ready for "Swine Fest."

+ Check out a preview of Lady Gaga's song "Swine," an ARTPOP track that she's rehearsing for her iTunes Festival performance in London on Sept. 1. (MTV News)

+ Dubbing the set "Swine Fest," Gaga has been tweeting a list of "acceptable attire for #SwineFest," which so far includes sea horses, painted dreadlocks, and bedazzled pig noses. Check out the Swine Fest makeover that MTV Style gave the boys of One Direction -- Zayn's kinda werquing the seashell crown, no? (MTV Style)

+ And in more Mother Monster news, Lady Gaga will appear in the upcoming flick "Sin City: A Dame To Kill For." "Lady Gaga is in a scene in it, and I gotta say she did a good job, like she's a great actress," revealed costar Joseph Gordon-Levitt. (Just Jared)

+ KatyCats, are you curious as to why Katy Perry chose the name Prism for her album title? While she once described the record as "much darker" than her previous work, Katy sees Prism differently now. "There's definitely some textures and colors, but I think I was saying that when I was going through a different phase... I really let that light in," she explained. (MTV News)

+ Objective fact: Beyoncé is all things good. Now, she's shared a video that might inspire others to "Bey Good," too. In the uplifting clip, Bey's just being her awesome self, showing as much love for her fans as they have for her. (E!)

+ Kendrick Lamar finally opened up about his controversial verse on Big Sean's "Control." He told Power 106 that he was "surprised" by the reaction. And what about that "King of New York" line? He wasn't being literal. "It's not actually about being the king of whatever coast. It's about leaving a mark as great as Biggie, as great as 'Pac," he said. (Rap-Up)