Taylor Swift believes in a thing call marketing.

America's sweetheart -- and now America's greatest corporate sponsor -- lip syncs and dances around her home (or something like it) to the 2003 hit "I Believe In a Thing Called Love" by The Darkness for the latest in a never-ending series of Apple ads.

The tagline for the new commercial, released Tuesday, is "Dance like no one's watching." And by no one, she means everyone.

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Swift famously clashed and then made peace with Apple over payments to artists for its new streaming music service, Apple Music.

Some key takeaways from this new commercial:

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1. Taylor Swift fans will support her in anything she does, even making commercials.

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2. Swift and/or Apple clearly know their audience with these commercials: 20- and 30-somethings with disposable income who came of age with The Darkness and Jimmy Eat World and just want to close their eyes and dance like they're back in their ratty old dorm — even if it's actually an upscale contemporary home.

3. At least this time, she doesn't fall on her face.

4. Judging from the books on the table, Swift (or the agency behind the video) is apparently a fan of the paintings of Hans Richter and sculptures of Marino Marini.

5. Hello The Darkness my old friend. I've come to get your song in my head again.

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