Jack from school He listened to Bowie People thought he was cool He used to live for the feel Skating around up in the Hollywood Hills But no one knows He's talking it up That it's all for show He's boring as fuck You're Mr. Know-It-All She's staring at her phone And even though you sit together You feel so alone It's such a tragedy When people hardly speak Try to live up to the person you pretend to be You're Mr. Know-It-All You're Mr. Know-It Jill liked art She listened to Mozart People thought she was smart She used to quote Hemingway Trippin' on acid in the Palisades But no one knows That it's all for show You're Mrs. Know-It-All He's staring at his phone And even though you sit together You feel so alone It's such a tragedy When people hardly speak Try to live up to the person you pretend to be You must have known I tried to change Would love to say hello Please, don't hang up Afraid of what I'd say Hello, hello, hello I'm Mr. Know-It-All I'm Mr. Know-It-All Staring at my phone And even though we sit together I feel so alone It's such a tragedy We always used to speak Try to live up to the person I pretend to be I'm Mr. Know-It