Meghan Trainor is "All About That Bass" and now America is too. This week, the body positive rising pop star did the seemingly impossible... knocked Taylor Swift's new 1989 single "Shake It Off" from the top of the Billboard Hot 100 after just two weeks.

Trainor takes over the top of the charts after hanging out in the Hot 100's top three for three weeks. According to Billboard, "All About That Bass" led digital single sales, on-demand subscription streams and clocked in at No. 2 on the overall Streaming Songs chart. The '60s inspired, bass heavy single sold 312,000 copies last week, edging Swift out of the top spot of that chart, too.

The only arena that seems to not quite be "All About That Bass" yet is radio, but Trainor is faring well enough there, too, with a new No. 6 peak on the Radio Songs chart, and 103 million audience impressions.

Trainor tops Taylor Swift's new pop single "Shake It Off" on the chart this week, which slipped to No. 2 after leading the Hot 100 for two weeks. Trainor shook Swift off in sales, with "Shake It Off" moving a cool 281,000 copies in its third week on-sale. As the buzz about the catchy new single died down, Swift lost major points in streaming, with a 20 percent decrease and 7 million plays total.

But, Swift doesn't have too much to worry about. She's still at No. 2, after all.

For the second week in a row, Nicki Minaj is wrapping tight around the No. 3 spot with her "Anaconda." The Sir Mix-A-Lot featuring anthem with the sexy music video tops streams once again, with 13.1 million plays, though she can't yet hold a candle to Trainor and Swift's sales numbers or radio play.

Minaj also holds the No. 4 spot on the Hot 100 as her collaboration with Ariana Grande and Jessie J "Bang Bang" sits in that position for the second week in a row.

Despite the shakeup at No. 1, the Hot 100's top 10 remains full of familiar fall songs this week, with Iggy Azalea and Rita Ora's "Black Widow," Sam Smith's "Stay With Me," MAGIC!'s "Rude" and Grande's "Break Free" sitting at Nos. 5-8, respectively. Each of those singles are familiar to pop music fans and chart followers by this point and remained in largely similar spaces this week.

Maroon 5 reenters the top 10 this week with its "Maps" at No. 9 as its fifth studio album V debuted at No. 1 on the US Albums Chart.

And Sia's "Chandelier" rounds things out, clocking in at No. 10.

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