As previously reported, Mark Ronson's "Uptown Funk!," featuring Bruno Mars, rules the Billboard Hot 100 for an eighth week, while two Fifty Shades of Grey soundtrack singles, by Ellie Goulding and The Weeknd, scale the top 10.
Who else makes Hot 100 headlines this week?
Imagine Dragons, "I Bet My Life"
As parent album Smoke + Mirrors launches atop the Billboard 200 with 195,000 units, according to Nielsen Music, its lead single reaches the Hot 100's top 40 in its 16th week, leaping 54-28. It had previously peaked as high as No. 53 in its debut frame (Nov. 15). The group scored three top 15 Hot 100 hits from its 2012 debut full-length Night Visions: "It's Time" (No. 15), "Radioactive" (No. 3) and "Demons" (No. 6). "Radioactive" additionally set the record for the most weeks ever totaled on the chart: 87.
Ariana Grande, "One Last Time"
The new single from My Everything rockets 80-34 in its second week on the Hot 100 following the Feb. 15 premiere of its official video. It starts on Streaming Songs at No. 25, up by 174 percent to 4.7 million U.S. views. The track also enters Digital Songs at No. 42 with 30,000 sold (up 137 percent) and nears Radio Songs with a 71 percent surge to 24 million in audience.
Walk the Moon, "Shut Up and Dance"
As it tops Alternative Songs for a second week, the synth-rock track hits the Hot 100's top half in its 15th week, jumping 57-48. Helping its advance, it debuts at No. 34 on Digital Songs with a 25 percent gain to 35,000. It's also approaching Radio Songs (24 million, up 19 percent).
Taylor Swift, "Wonderland"
The song is the Hot 100's top debut at No. 51, entering Digital Songs at No. 9 with 84,000 sold. Now available on iTunes, the track is from the deluxe version of 1989, previously available exclusively at Target; fellow deluxe-edition songs "You Are in Love" and "New Romantics" are scheduled to follow "Wonderland" to iTunes.
Swift ties Elton John for the 10th-most Hot 100 hits (67) all-time. Among women, she trails only Aretha Franklin (73). Speaking of most Hot 100 entries …
Five more songs enter the Hot 100, led by "Know Yourself" at No. 70, from If You're Reading This It's Too Late, which drops 1-2 in its second week on the Billboard 200, after five titles arrived last week. He ups his total to 85 career Hot 100 entries, passing Jay Z for fifth-most appearances in the chart's history. Here's an updated look at the top 10 acts (including Swift) to make the most visits dating to the Hot 100's 1958 launch:
207, Glee cast
125, Lil Wayne
108, Elvis Presley (whose career predated the Hot 100 by more than two years)
91, James Brown
83, Jay Z
74, Ray Charles
73, Aretha Franklin
71, the Beatles
67, Elton John
67, Taylor Swift