Chart Highlights: Avril Lavigne Tells Husband Chad Kroeger, 'Let Me Go'; Kacey Musgraves' 'Arrow' Lands On Country Airplay

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5.CHAD KROEGER & AVRIL LAVIGNE After a marriage to Sum 41 frontman Deryck Whibley ended in 2009, Avril Lavigne began a budding relationship with Nickelback frontman Chad Kroeger, and the pair announced their engagement in August 2012. Both artists released albums in 2011 -- Lavigne issued her fourth full-length, "Goodbye Lullaby," while Kroeger's crew dropped "Here and Now" last fall -- and brought their cumulative sales to 34.4 million copies sold. Not a bad nest egg for the new couple!

Lavigne and Kroeger chart their first collaboration on Adult Pop Songs, while Kacey Musgraves' same-sex relationship equality anthem finds support at country

Chart Highlights offers a sneak peek at a select group of Billboard charts every Monday. Find out the top songs, Greatest Gainers and debuts on the surveys listed below.

All our charts are refreshed on and Billboardbiz every Thursday and appear in the next issue of Billboard magazine.

Pop Songs
*** No. 1 (1 week)*** "Royals" Lorde
Greatest Gainer No. 4 "Wrecking Ball" Miley Cyrus
Debut No. 35 "Timber" Pitbull Featuring Ke$ha
Debut No. 38 "Counting Stars" OneRepublic
Debut No. 39 "Burn" Ellie Goulding

Adult Contemporary
*** No. 1 (3 weeks)*** "Cups (Pitch Perfect's When I'm Gone)" Anna Kendrick
Greatest Gainer No. 2 "Roar" Katy Perry
Debut No. 29 "Applause" Lady Gaga

Adult Pop Songs
*** No. 1 (5 weeks)*** "Roar" Katy Perry
Greatest Gainer No. 18 "Wrecking Ball" Miley Cyrus

Debut No. 37 "Let Me Go" Avril Lavigne Featuring Chad Kroeger
Husband-and-wife Avril Lavigne and Chad Kroeger combine forces musically on "Let Me Go," which enters Adult Pop Songs at No. 37. Separately, Lavigne has charted 14 titles dating to her arrival with "Complicated" in 2002, while Kroeger's prior history includes 15 entries with Nickelback and another three as a soloist. (They're not the only couple on the chart: John Mayer jumps 26-23 with "Who You Love," featuring his girlfriend, Katy Perry.)

Debut No. 40 "The Giving Tree" Plain White T's

Dance/Club Play Songs
*** No. 1 (1 week)*** "Lose Yourself To Dance" Daft Punk Featuring Pharrell Williams
Greatest Gainer No. 5 "Work B**ch!" Britney Spears
Debut No. 45 "Indestructible" Veronica Jensen
Debut No. 47 "Look Closer" Morten
Debut No. 48 "What Cha Feeling" Liam Keegan Featuring Julissa Veloz And Kae Lou
Debut No. 49 "I Can't Get Enough Of You" Pearl Future Featuring Sidney Samson

R&B/Hip-Hop Airplay
*** No. 1 (2 weeks)*** "Hold On, We're Going Home" Drake Featuring Majid Jordan
Greatest Gainer No. 6 "Tom Ford" Jay Z
Debut No. 43 "Used 2" 2 Chainz
Debut No. 45 "Runnin'" Eric Benet
Debut No. 46 "Royals" Lorde
Debut No. 50 "King Sh*t" Yo Gotti Featuring T.I.

Rap Airplay
*** No. 1 (9 weeks)*** "Holy Grail" Jay Z Featuring Justin Timberlake
Greatest Gainer No. 3 "Tom Ford" Jay Z
Debut No. 23 "No Games" Rick Ross Featuring Future

Rock Airplay
*** No. 1 (1 week)*** "Pompeii" Bastille
Greatest Gainer No. 11 "Sirens" Pearl Jam
Debut No. 44 "Who We Are" Switchfoot
Debut No. 47 "Shake" The Head And The Heart
Debut No. 49 "Addicted To Pain" Alter Bridge
Debut No. 50 "Chocolate" The 1975

Alternative Songs
*** No. 1 (2 weeks)*** "Pompeii" Bastille
Greatest Gainer No. 12 "Sirens" Pearl Jam
Debut No. 38 "Head On" Man Man
Debut No. 39 "Little Games" The Colourist

Country Airplay
*** No. 1 (2 weeks)*** "It Goes Like This" Thomas Rhett
Greatest Gainer No. 26 "Stay" Florida Georgia Line

Debut No. 56 "Follow Your Arrow" Kacey Musgraves
In February, Billboard reported that Kacey Musgraves' "Follow Your Arrow" was a song that one anonymous country programmer "wish[es] I could play on my station." With such lyrics as, "Kiss lots of boys or kiss lots of girls, if that's what you're into / When the straight and narrow gets a little too straight, roll up a joint, I would," a country consultant described the song as "pushing the envelope" at a format not historically known for potentially eyebrow-raising content. Perhaps Musgraves' rising star is giving her leeway: following the bow of her major-label debut album "Same Trailer Different Park" at No. 1 on Top Country Albums and six nominations - tied with Taylor Swift for the most - at this year's CMA Awards, "Arrow" shoots onto Country Airplay at No. 56. It follows the set's No. 10 hit "Merry Go 'Round" and the No. 23-peaking "Blowin' Smoke." KKBQ Houston led all reporters with 27 plays for "Arrow" in the Oct. 14-20 Nielsen BDS tracking week.

Debut No. 59 "Doin' It Right" Rodney Atkins

Latin Airplay
*** No. 1 (1 week)***/Greatest Gainer "Carnaval" Tito "El Bambino"
Debut No. 41 "Wrecking Ball" Miley Cyrus
Debut No. 46 "Sopa de Caracol - Yupi" Elvis Crespo Featuring Pitbull

Regional Mexican Songs
*** No. 1 (1 week)*** "Ni Que Estuvieras Tan Buena" Calibre 50
Debut/Greatest Gainer No. 32 "Te Veias Mejor Conmigo" Espinoza Paz

Latin Pop Songs
*** No. 1 (6 weeks)*** "Loco" Enrique Iglesias Featuring Romeo Santos
Debut No. 24 "Donde Esta El Amor" Pablo Alboran Featuring Jesse & Joy
Debut No. 29 "Cambio de Piel" Marc Anthony
Debut No. 33 "Wrecking Ball" Miley Cyrus
Debut No. 35 "No Querias Lastimarme" Gloria Trevi
Debut/Greatest Gainer No. 39 "Hasta Abajo" Yandel

Tropical Songs
*** No. 1 (1 week)***/Greatest Gainer "Carnaval" Tito "El Bambino"

Christian Songs
*** No. 1 (6 weeks)*** "Overcomer" Mandisa
Greatest Gainer No. 6 "Love Take Me Over" Steven Curtis Chapman
Debut No. 41 "Pieces" Meredith Andrews
Debut No. 48 "Broken Hallelujah" The Afters

Gospel Songs
*** No. 1 (12 weeks)*** "Every Praise" Hezekiah Walker
Greatest Gainer No. 13 "It's Working" William Murphy
Debut No. 29 "There" Latice Crawford