Maybe she has a devil inside her!
Ok, now really, the hell with the lyrics. It's like there's supposed to be an etiquette for writting lyrics, or if the lyrics completely destroy the sound (isn't music more related to sound than anything in the first place?).
Too bad you find them silly, I think they are a great compliment to the overall sound of the album. I don't wanna hear her sing about cars called Hitler or double-suicide with her lover, if the beat is danceable and it's supposed to be a "good vibes" kinda thing. She's not a rock artist, she's not distant-gaze my-son-is-being-drafted-away Ringo, she's a pop/r'n'b artist. What have we come to expect from those genres anyway?