fun.'s "We Are Young," featuring Janelle Monae, spends a fourth week atop the Billboard Hot 100, while Kelly Clarkson collects her first topper on the Hot 100 Airplay survey and Taylor Swift boasts the Hot 100's top new entry.

"Young" logs a sixth week at No. 1 on the Hot Digital Songs chart with 387,000 downloads sold (up 11%), according to Nielsen SoundScan. With the sum, the song becomes 2012's top-selling download (2.39 million), passing Kelly Clarkson's "Stronger (What Doesn't Kill You)" (2.25 million). More on Clarkson's hit in a moment.

On Hot 100 Airplay, "Young" rockets 14-4 in its fifth week with 88 million audience impressions (up 36%), according to Nielsen BDS, granting the song the Hot 100's top Airplay Gainer award for a fourth consecutive week.

Fun. Remains Atop Revised Hot 100

How big an alternative crossover hit has "Young" quickly become? As it holds at No. 2 on the Alternative airplay chart, its five-week flight to the Hot 100 Airplay top 10 is the fastest for an Alternative top 10 since Hot 100 Airplay expanded to encompass all radio formats the week of Dec. 5, 1998.

As announced two weeks ago, streaming data now carries a greater weight on the Hot 100 with the addition of the newly-launched On-Demand Songs chart. Streaming figures continue to help keep "Young" in the Hot 100's penthouse, as the song, which leads On-Demand Songs for a third week, drew 1.18 million on-demand streams (up 7%) in the chart's tracking week, according to BDS.

How fun. Is Riding Success From The Super Bowl

Now, back to Clarkson's former three-week No. 1 "Stronger": the song holds at No. 2 on the Hot 100, while rising 2-1 on Hot 100 Airplay (117 million). A decade into her career, the 2002 "American Idol" champion scores her first No. 1 on the all-format-based Hot 100 Airplay ranking. Clarkson had previously peaked as high as No. 4 on Hot 100 Airplay with three singles in 2005: "Since U Been Gone," "Behind These Hazel Eyes" and "Because of You." ("Mr. Know It All," the previous and lead single from Clarkson's latest album, Stronger, reached No. 14 on Hot 100 Airplay.)

As it tops the radio tally, "Stronger" slides 5-8 on Hot Digital Songs (151,000, down 7%). It ranks at No. 11 on On-Demand Songs with 454,000 streams (down 2%).

One of Billboard magazine's two current cover acts, U.K. boy band the Wanted, remains at No. 3 on the Hot 100 with "Glad You Came," thanks to a No. 3 rank on Hot Digital Songs (183,000) and a 7-6 lift on Hot 100 Airplay (83 million, up 13%) and 4-3 advance on On-Demand Songs (626,000, up 10%).

Wayne Hector, Hit-Making UK Songwriter, Talks One Direction, Nicki Minaj, Streaming Services, More (Q&A)

(The other group on the cover of the latest issue of Billboard, fellow British boy band One Direction, jumps 19-11 on the Hot 100 with its U.S. debut single, "What Makes You Beautiful.")

Gotye's "Somebody That I Used to Know," featuring Kimbra, pushes 5-4 on the Hot 100. The collaboration, which crowns Alternative for a sixth week, climbs 4-2 on Hot Digital Songs (208,000, up 25%) and 36-20 on Hot 100 Airplay (44 million, up 19%). "Somebody" remains at No. 2 on On-Demand Songs (871,000, up 12%).

In an era known for pop/dance domination (Lady Gaga, Katy Perry, Rihanna, etc.), it's notable that the top two tracks on On-Demand Songs (fun.'s "Young," and Gotye's "Somebody") are also the top two titles on Hot Digital Songs and (in reverse order) Alternative.

Nicki Minaj tallies her second Hot 100 top five as a lead artist, as "Starships" sails 6-5. Although it descends 3-5 on Hot Digital Songs, it shows a gain of 1% to 174,000. It pushes 21-17 on Hot 100 Airplay (45 million, up 10%) and 10-6 on On-Demand Songs (521,000, up 18%). Minaj previously reached the Hot 100 top five as a lead with the No. 3-peaking "Super Bass" last year.

No new titles enter the Hot 100's top 10, which is rounded out by Adele's former two-week No. 1 "Set Fire to the Rain" (4-6); Flo Rida's "Wild Ones," featuring Sia (9-7); Katy Perry's former leader "Part of Me" (10-8); Drake's "Take Care," featuring Rihanna (8-9); and, David Guetta's "Turn Me On," featuring Minaj (7-10).

Taylor Swift performs the top-debuting song on the Hot 100 and the top Digital Gainer, both from the new No. 1 album on the Billboard 200, the soundtrack The Hunger Games: Songs from District 12. "Eyes Open" begins as the Hot 100's Hot Shot Debut at No. 19 (176,000 downloads sold), while "Safe & Sound," featuring the Civil Wars, rebounds 71-35 with the top digital increase (up 125% to 93,000).

'Hunger Games' Soundtrack Debuts at No. 1 on Billboard 200

Another cut from the "Hunger Games" soundtrack, Maroon 5's "Come Away to the Water," featuring Rozzi Crane, enters the Hot 100 at No. 83.

Check tomorrow (March 29), when all rankings, including the Hot 100, Hot Digital Songs, Hot 100 Airplay and On-Demand Songs, will be refreshed, as they are each Thursday.