Grande tops the charts with Yours Truly, her debut studio album, selling 138,000 copies in its first week out, according to data from Nielsen SoundScan. Grande becomes the third act to score a No. 1 album with a debut in 2013, following A$AP Rocky's February release Long. Live. A$AP and Selena Gomez's July release Stars Dance.

Much of the 20-year-old's success is owed to two mediums: radio and TV. Her debut single "The Way" has peaked at No. 9 on the Hot 100, while her starring role on the Nickelodeon sitcom Sam & Cat � in which she reprises the role of Cat Valentine she originated in Nickelodeon's four-season run of Victorious � has kept her profile high among the teen demographic.

It was a tight race to the finish, Billboard reports. Early forecasts saw Yours Truly neck-and-neck with Love & War, the sophomore release from R&B artist Tamar Braxton. According to Billboard, Grande's camp, which includes Bieber's manager Scooter Braun, launched a download promotion for the new album last Thursday (Sept. 5), which gave those who purchased Yours Truly through the singer's website through last Sunday (Sept. 8) a ticket to an upcoming event with Grande later this year. The promotion accelerated sales by between 5,000 and 7,000 copies, label sources confirmed.

That gap ended up not mattering, as Love & War manages sales of 114,000. That's still a striking return to the charts for Braxton, who last released an album � Tamar � in 2000. That album peaked at No. 127 on the Billboard 200. Love & War, meanwhile, hits the No. 1 spot on the R&B/Hip-Hop Albums chart. The eponymous lead single has peaked at No. 57 on the Hot 100 and at No. 13 on the R&B chart.

A third debut hit six digits in album sales this week, too. The return of Nine Inch Nails sees Trent Reznor and co. sell 107,000 copies of Hesitation Marks, the band's first album since 2008′s The Slip. "Came Back Haunted," the set's lead single, has found a home on alternative rock radio, peaking at No. 7 on the Alternative Songs chart.