Meghan Trainor and John Legend

Meghan Trainor and John Legend perform on "The Tonight Show Starring Jimmy Fallon" on May 21, 2015.

Douglas Gorenstein/NBC

As previously reported, The Weeknd remains at No. 1 on the Billboard Hot 100 (dated Oct. 17), as "The Hills" spends a third week on top. Meanwhile, Shawn Mendes scores his first Hot 100 top 10 with "Stitches." And, as The Weeknd and Mendes join fellow Canadians Justin Bieber and Drake in the top tier, half the Hot 100's top 10 belongs to Canadian artists.

The Weeknd No. 1 on Hot 100 Again, Shawn Mendes Earns First Top 10

Who else moves north on the Hot 100?

Elle King, "Ex's & Oh's"

King's debut hit surges into the Digital Songs top 10, rising 14-10 (56,000 downloads sold, up 16 percent, according to Nielsen Music). It also hits a new high on the Hot 100, jumping 30-22 and adding top Digital Gainer honors. "Ex's" also excels on Radio Songs (21-15), up by 11 percent to 58 million in audience.

Meghan Trainor feat. John Legend, "Like I'm Gonna Lose You"

Trainor tallies a fourth top 40 Hot 100 hit from her debut album Title, as her collab with Legend rises 41-33. It follows "All About That Bass" (No. 1 for eight weeks), "Lips Are Movin" (No. 4) and "Dear Future Husband" (No. 14). "Lose" is Trainor's fifth top 40 Hot 100 entry overall: she reached a high of No. 21 last week as featured on Charlie Puth's "Marvin Gaye" (this week at No. 28).

Sia, "Alive"

The lead single from Sia's forthcoming album This Is Acting bows at No. 56 as the Hot 100's Hot Shot Debut with 54,000 first-week downloads sold. She co-wrote the ethereal track with, and originally for, Adele. Tobias Jesso Jr., featured in Billboard's Tomorrow's Hits spotlight back in March, also co-penned "Alive."

Sam Smith, "Writing's on the Wall"

Call him … Smith ... Sam Smith. The theme from the latest James Bond film, Spectre, which opens in North American theaters Nov. 6, begins at No. 71 on the Hot 100 with 55,000 sold. In Smith's native country, it makes history, launching at No. 1 on the Official U.K. Singles chart, marking the first Bond theme to reign. Previously, Adele's "Skyfall" (2012) and Duran Duran's "A View to a Kill" (1985) had reached No. 2 in the U.K. The latter is the only Bond theme to top the Hot 100.

Rudimental feat. Ed Sheeran, "Lay It All on Me"

Rudimental's team-up with Sheeran on the dance-leaning pop track debuts at No. 96 on the Hot 100, fueled by its No. 36 start on Digital Songs (26,000 first-week downloads sold). The cut is also off to a quick start at radio, entering Adult Pop Songs at No. 33 and Pop Songs at No. 40.