When you’re a band that’s just starting out, your fans become your biggest source of support. When your fanbase includes Katy Perry, you know you’re bound for something big. Like, really big. Years & Years experienced this firsthand when Perry, as Emre Türkmen says, “Waltzed into our dressing room in New York, wearing a beanie.” (The proof is here.) According to its frontman Olly Alexander—who we surprised with a tart for his birthday on the say of filming—she’s a “great human because she has these cool friends that seem nice.” Sigh. If only being great was that easy.