Adele No. 1 on Hot 100 as Rihanna, Drake, Justin Bieber Surge
Adele No. 1 on Hot 100 as Rihanna, Drake, Justin Bieber Surge

BIG 'LOVE': Like Adele, Rihanna begins 2012 by building on her momentum of last year.

"We Found Love" extends its reign as Rihanna's longest-leading Pop Songs No. 1, as the song, featuring Calvin Harris, rules for a sixth frame. That's twice the total of her three previous longest commands: "Take a Bow" and "Disturbia," which led for three weeks apiece in 2008, and "Only Girl (In the World)" (three, 2010).

Rihanna concurrently debuts on Pop Songs at No. 39 as a guest on Coldplay's "Princess of China." Although Capitol is not officially promoting the song, from Coldplay's album "Mylo Xyloto," to pop radio, 55 stations in the format played it in the chart's tracking week.

The entrance of "Princess" queens Rihanna as the sole artist with the most Pop Songs entries since the Nielsen BDS-based list launched the week of Oct. 3, 1992. Now with 30 visits, she passes Island Def Jam labelmate Mariah Carey (29) for first place.

Here is a look the Pop Songs chart's most-frequent patrons (with the careers of such veterans as Carey, Janet Jackson and Madonna predating the ranking's origin):

Total Appearances, Artist (Chart Span)
30, Rihanna (2005-12)
29, Mariah Carey (1993-2009)
28, Britney Spears (1998-2011)
26, Madonna (1992-2008)
24, Akon (2004-11)
24, Eminem (1999-2011)
24, Lil Wayne (2004-11)
23, Janet Jackson (1993-2008)
22, Ludacris (2002-11)
21, Nelly (2000-11)
21, T-Pain (2005-12)
21, Usher (1997-2012)

Rihanna's feat of most appearances on the 19-year-old survey is even more notable considering that she first debuted on it as recently as June 25, 2005, when "Pon De Replay" arrived at No. 31.

Rihanna additionally holds the marks for most Pop Songs No. 1s (nine) and top 10s (19).

LEADERS OF THE BAND: Two New Year's favorites return to the Holiday Digital Songs top 10.

Guy Lombardo's "Auld Lang Syne," which he first recorded in 1939, re-enters at No. 4 (8,000 downloads sold, up 1,244%, according to Nielsen SoundScan) and Dan Fogelberg's bittersweet ballad "Same Auld Lang Syne," a No. 8 hit on the Hot 100 in 1980, returns to the holiday tally at No. 10.

With the re-entries, the already length chart histories of the late talents expand.

Fogelberg first drew Billboard chart ink the week of Dec. 7, 1974, when his second album, "Souvenirs," bowed on its way to a No. 17 peak. Fogelberg tallied four top 10 albums on the Billboard 200 and four top 10 songs on the Hot 100. On Adult Contemporary, he notched four No. 1s: "Longer" (one week, 1980), "Leader of the Band" (two, 1982), "Make Love Stay" (one, 1983) and "Believe in Me" (one, 1984).

According to Joel Whitburn's " Pop Music 1890-1954, the History of American Popular Music," the legendary Lombardo amassed a colossal 218 entries on various charts (including rankings from sources other than Billboard) beginning as far back as 1927.

"It was, of course," Whitburn points out, "Guy's annual New Year's (radio and television) broadcasts, always climaxed by his theme 'Auld Lang Syne,' that made him most familiar to modern audiences."