Pop music surrounds us, but how often do we really listen to what we’re hearing? Switched on Pop is the podcast that pulls back the curtain on pop music. Each episode, join musicologist Nate Sloan and songwriter Charlie Harding as they reveal the secret formulas that make pop songs so infectious. By figuring out how pop hits work their magic, you’ll fall in love with songs you didn’t even know you liked.

There’s no more iconic Britney lyric than the opening of “Gimme More”.

It's 2007, four years since her last album "In The Zone" was released, and Britney is affirmatively back with the uptempo track leading off her album Blackout: “It’s Britney, Bitch”.

The song echoes the dance-pop Neptunes sound of “I’m A Slave 4 U”. It's built around a driving riff and off-kilter drums produced by Floyd Nathaniel Hills AKA Danja. Each time Britney sings “more” her voice is pitched down to a devilish growl. This disturbing vocal processing mirrors the vulgar paparazzi and public scrutiny in her personal life.

On the fourth and final episode of our series Listening 2 Britney, we want to once again focus on her voice, how it's manipulated, how it’s evolved, and where it might be going.

[audio audio="https://dcs.megaphone.fm/VMP9535088727.mp3" title="Listening 2 Britney: Gimme More" descr=""]