Pop Sweep: March 15, 2014...

It's time to kick off the first of today's five "chart sweeps", checking out the songs making the singles charts in Billboard magazine. As always, I'll start on the pop side, and then later in the day move to rock, R&B, country, and dance...

On the "big chart", Billboard's Hot 100, Pharrell Williams holds for a second week with "Happy"...

The top debut of the week at #55 is the first for remixing and production team the Chainsmokers, with their hilarious meme novelty song "#SELFIE"...

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Justin Timberlake is in at #65 with the third single from the second volume of his 20/20 Experience project, "Not A Bad Thing", my "Pop Pick of the Week". The other two went top-40 with "Take Back The Night" reaching #29...

Rapper Pitbull arrives at #89 with new non-album track "Wild Wild Love" featuring vocal "girl-group" G.R.L., who were formed by the mentor behind the Pussycat Dolls, Robin Antin...

Fitz & The Tantrums follow up their hit "Out Of My League", which was huge on rock and adult radio but stopped one notch short of the Hot 100, with "The Walker" at #93...

Post-emo pop/rock group Paramore return at #96 with "Ain't It Fun", the second single from their self-titled lineup reboot. It follows "Still Into You", which went to #24 last year...

 The final entry on the big one at #100 is from modern rock group Neon Trees with the teaser for their upcoming third album, "Sleeping With A Friend". Their last, "Everybody Talks", went as high as #6 in 2011..

 And now on to the pop radio format charts...

On the Mainstream Top-40 radio panel,  Katy Perry remains on top for a fourth week with "Dark Horse"...

Arriving at #37 is trance veteran Tiesto with "Red Lights"...

 The aforementioned "Not A Bad Thing" drops in here at #38...

And at #40 is Eminem along with Nate Ruess from fun. with "Headlights"...

Meanwhile, on the older-skewing Adult Top-40 format, American Authors climb to #1 with "The Best Day Of My Life"...

The high debut at #32 is from Jason Derulo with the third single from his Tattoos EP, "Talk Dirty" featuring 2 Chainz. The first, "The Other Side", went to #22, while the second, "Marry Me", stopped at #27...

Neo-new wave trio CHVRCHES debut at #38 with "The Mother We Share"...

And at #39 is British musician and producer Naughty Boy with "La La La" featuring vocals from Sam Smith...

Lastly, on the Adult Contemporary (or "easy-listening") radio chart, Katy Perry's "Roar" hangs tight for a 15th non-consecutive week at #1...

The sole entry here at #24 is Cher with her cover of the ballad originally recorded by Miley Cyrus, "I Hope You Find It"...

 I'll return with the latest on rock radio...