will.i.am, Britney Spears 'Scream & Shout' On New Single
will.i.am, Britney Spears 'Scream & Shout' On New Single

Hot 100

As previously reported, Bruno Mars spends a second week at No. 1 on the Billboard Hot 100 with "Locked Out of Heaven," while Taylor Swift's "I Knew You Were Trouble" re-enters the top 10 for the first time since debuting at No. 3 as a "Red" preview track in October.

Who else is red hot on the Hot 100 and other singles charts?

-- will.i.am, Britney Spears: The pair's "Scream & Shout" dips for a second week on the Hot 100, from No. 13 to 15, after debuting at No. 12 two weeks ago. A trip to the top 10, however, shouldn't be ruled out. The song decreases by 15% in sales to 120,000, according to Nielsen SoundScan, and falls 4-5 on Hot Digital Songs after roaring 66-1 on the chart two weeks ago (with 196,000). The song hasn't slid that precipitously in sales following its original splash, and it's also gaining early momentum in airplay and streaming. The track surges 64-42 on Hot 100 Airplay (29 million in audience, up 42%) and debuts on On-Demand Songs at No. 48 (406,000 on-demand streams, up 20%, according to Nielsen BDS).

-- PSY: As the rapper's former seven-week No. 2 Hot 100 smash "Gangnam Style" falls 11-18, it logs a notable feat: with another 101,000 downloads sold, it passes three million in release-to-date sales. It spends a 15th straight week in the Hot Digital Songs top 10 (6-9); it led the list for six frames.

-- Mariah Carey: Her 1994 holiday hit "All I Want for Christmas Is You" rises to No. 25 on the Hot 100 after r e-entering last week at No. 29. It gains by 11% to 29 million in airplay, but declines by 6% to 65,000 in sales. With another week to go before Christmas, the song could continue rising somewhat on next week's chart. For now the No. 25 rank is the song's highest so far on the Hot 100.

-- Cassadee Pope: Crowned champion on Tuesday (Dec. 18) of the third season of NBC's "The Voice," Pope scores the Hot 100's Hot Shot Debut at No. 40 with her cover of Keith Urban's "Stupid Boy." The song opens at No. 6 on Hot Digital Songs with 117,000 (while Urban's original, a No. 3 Hot Country Songs hit in 2007, enters Country Digital Songs at No. 44 with 10,000, up from 1,000 the week before). "Voice" runner-up Terry McDermott concurrently enters the Hot 100 at No. 70 with his cover of the Beatles' "Let It Be" (66,000).

-- Ellie Goulding: "Lights," the No. 1 Mainstream Top 40 title of 2012, spends a 52nd week on the Hot 100 (38-43). With its latest frame, the track becomes just the 30th song in the Hot 100's 54-year history to log at least a year on the chart.