‘WandaVision’ anthem hits music charts

Who’s been hitting the music charts?

It’s been “Agatha All Along.” Everyone’s favorite theme song from the popular Disney+ series “WandaVision” has landed on both Billboard and iTunes charts upon its release. The villainous jingle — written by Robert Lopez and Kristen Anderson-Lopez for Kathryn Hahn’s character — debuted at No. 36 on its digital song sales survey with 3,000 downloads sold as of Feb. 25.

The upbeat tune, which was released Feb. 23 as part of the “WandaVision: Episode 7” soundtrack, also soared to No. 1 on the iTunes soundtrack chart and has racked up more than 1.7 million streams on Spotify.

“I don’t understand it,” a stunned Hahn told “Late Night” host Seth Meyers of her first chart-topping hit. “It’s amazing. ... What’s happening? ... Like, I don’t have social media, so the whole thing was, like, filtered down ... I was like, ‘Are you kidding me?’ ... The whole thing is so bonkers right now . ... it’s totally, totally bonkers.”

Hahn also credited Grammyand Oscar-winning songwriting duo Lopez and Anderson-Lopez for the “crazy, awesome, delicious, 47-second” song, featured at the end of the series’ seventh episode — in which Wanda’s (Elizabeth Olsen) nosy-but-harmless neighbor character is actually (spoiler alert!) revealed to be the notorious Agatha Harkness, a powerful witch in the Marvel universe.

“Who’s been messing up everything?/ It’s been Agatha all along,” the Lopezes, Hahn and others sing on the track as a cheesy montage of Agatha’s nefarious tricks plays onscreen. “Who’s been pulling every evil string?/ It’s been Agatha all along/ She’s insidious/ So perfidious/ .... It’s too late to fix anything/ Now that everything has gone wrong.”