Confronted with no serious new competition, Taylor Swift’s “1989” prevailed at the top of the U.S. album chart last week.

In its ninth non-consecutive week at No. 1, Swift’s Big Machine blockbuster notched the only six-figure sales in the frame, tracking another 155,000 total units (off 36%), according to Nielsen Music data for the week ending Jan. 11.

Swift will likely witness her first real challenger of 2015 next week, when “Title,” the debut album by “All About That Bass” hitmaker and Grammy nominee Meghan Trainor, makes its chart debut. The album was released yesterday, and some prognosticators say it could shift as many as 200,000 units in its bow.

The week’s lone top-10 debut was “SremmLife” (Interscope), the full-length debut by hip-hop twosome Rae Sremmurd, which launched at No. 5 with a tepid 49,000 total units. The Mississippi duo of Swae Lee and Slim Jimmy scored a top-five R&B hit with “No Type” last year.

Holding over with declining numbers were Ed Sheeran’s “x” (No. 2, 76,000 sold, down 9%), Nicki Minaj’s “The Pinkprint” (No. 3, 60,000, off 29%), Sam Smith’s “In the Lonely Hour” (No. 4, 57000, down 31%), “Hozier” (No. 6, 49,000, off 19%), J. Cole’s “2014 Forest Hills Drive” (No. 7, 45,000, down 24%), “Guardians of the Galaxy: Awesome Mix Vol. 1” (No. 8, 35,000, down 50%), One Direction’s “Four” (No. 9, 32,000, down 41%) and Ariana Grande’s “My Everything” (No. 10, 28,000, down 34%).