"Told You So" is a song by American rock band Paramore. It was released on May 3, 2017 through Fueled by Ramen as the second single off their fifth studio album After Laughter. It was written by lead vocalist Hayley Williams and guitarist Taylor York and was recorded in the band's hometown, Nashville, Tennessee. A music video for the song, directed by drummer Zac Farro and Aaron Joseph, was uploaded to their record label Fueled by Ramen's YouTube channel along with the release of the song.

In an interview with Zane Lowe's Beats 1 Radio, Hayley Williams stated that the song was one of the first pieces of music that Taylor York sent her. "I had a little thumb-drive, and I would just drive around listening to it, and especially back and forth from Taylor's house. And I would sing little rhythmic sings to myself – they didn't make sense. There were no words. But this is another one that really intimidated me because I was like, 'I have all these melody ideas because there's no so much melody going on and so much rhythm going on. It's so inspiring. But how am I going to fit what I feel into that?' It took a minute."

Rolling Stone described the song as funk-pop, "over Zac Farro's New Wave drum groove and Taylor York's spidery guitars". Likewise, Nerdist said the song has "a bit of funk bass hops in the background while that same tropical guitar-work we heard in “Hard Times” twirls throughout." Derrick Rossignol of Uproxx called the song a "super fun indie pop-rock tune that borrows from the '80s and sunshine." Similarly, Rock Cellar Magazine described the song as a "shimmery indie-pop gem", while Andrew Trendell at NME characterized the song as a "summer-y electro-pop," with a "rush of tropical rhythms." Setphen Trageser of Nashville Scene categorized it as a "groovy New Wave-y cut". According to MTV, the song "takes some of the '80s-infused riffage we heard on "Hard Times" and runs with it."

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