Taylor Swift Logs Second Week at No. 1 With 'Patient Zero'

Taylor Swift's "Patient Zero" holds at No. 1 on the Billboard Hot 100 for a second week, even as its streams dropped by half, according to Billboard's latest chart data. The single logged 17.4 million official streams, down 50 percent week over week, and slipped from No. 1 to No. 2 on the Streaming Songs chart.

The track is the lead single from "The Life of Showgirl: The Encore." It is one of four new Swift songs on the album, which yesterday earned Swift her 100th cumulative week at No. 1 on the Billboard 200 across all her releases.

"Patient Zero" marks Swift's 51st career week at the top of the Hot 100. That total ranks fifth in chart history, behind Mariah Carey (101), Rihanna (60), the Beatles (59) and Drake (58).

What does the half-century of weeks at No. 1 change?

For Swift, it tightens her grip on the upper tier of chart history without closing the gap to Carey, whose 101 weeks remain nearly double Swift's total. The number is a milestone, not a record. The more striking figure is the 100th week at No. 1 on the Billboard 200, a benchmark that few artists in any era have approached.

The 50 percent stream decline, however, is the caveat attached to this week's crown. A second week at No. 1 on halved consumption suggests the song's staying power will face a real test in week three.

Drake debuts at No. 5 with 'Solar Eclipse'

Drake enters the Hot 100 at No. 5 with "Solar Eclipse," a collaboration with Don Toliver. The track puts a spin on Ella Langley's "Choosin' Texas," which holds at No. 2 after a record 24 weeks at No. 1.

"Solar Eclipse" first appeared in "Fear of Missing Out," the film Drake aired on YouTube in mid-September. Streaming services later released it as part of his "Habibti (FOMO)" edition, along with three other new songs.

Adéla cracks the top 10

Slovakian pop newcomer Adéla posted the week's other notable result. Her track "Nicole Kidman" jumped from No. 12 to No. 9. It became her first Hot 100 entry last month, and her other single, "Ain't in LA," remains in the top 30.

Her chart presence has grown since the release of her debut album "Prima" in early September, boosted by her "Red Bottoms" tour, currently crossing North America.

What the coming weeks will show is whether "Patient Zero" survives its steep stream decline — and whether Adéla can convert a top-10 leap into a sustained presence.