It’s only fitting that one of TV’s most iconic shows had an equally classic theme song to match. For 10 seasons,Friends opened with “I’ll Be There for You” by The Rembrandts, arguably one of the ear-wormiest theme songs on record: the peppy guitar riffs, the chorus that makes you sway and smile while belting a promise to your BFF that you probably won’t keep, those damn hand claps. It’s an undeniably catchy bop that captures the fun and irreverent tone of the show. But change the key of the song and suddenly you’re thrust into what sounds like an emo eulogy for all your dead friends.