Is that humming we hear -- or ho-humming?

Billboard's country albums and airplay chart champs are the same this week as last: Blake Shelton's Based on a True Story and Tim McGraw's "Highway Don't Care" (with Taylor Swift), respectively.

LeAnn Rimes' Spitfire checks in at No. 9 as the week's highest-debuting new album, boasting an initial sales total of 10,780 copies, Nielsen SoundScan reports.

Maybe country fans were too busy listening to live shows at the CMA Music Festival to spend much time (or money) purchasing records. Again by Nielsen SoundScan's count, 372,646 country albums were sold during festival week, compared to 379,491 units the week before.

In addition to Rimes' project, three other new albums arrive on the charts: Lonestar's Life as We Know It (No. 33). Charlie Robison's Live at Billy Bob's Texas (No. 63) and Dee Jay Silver's EP, Country Club (No. 67).

Returning to the chart are Love and Theft's self-titled album (No. 70) and Granger Smith's Dirt Road Driveway (No. 72).

There are two new songs to herald: Love and Theft's "If You Ever Get Lonely" (No. 53) and The Voice winner Cassadee Pope's "Wasting All These Tears" (No. 54).

Making a comeback are Kenny Chesney's "When I See This Bar" (No. 39) and Gretchen Wilson's "Still Rollin'" (No. 60).

Rounding out the Top 5 albums, in descending order, are Darius Rucker's True Believers, Florida Georgia Line's Here's to the Good Times, George Strait's Love Is Everything and Lady Antebellum's Golden.

The No. 2 through No. 5 songs are Shelton's "Boys 'Round Here," Jake Owen's "Anywhere With You," Luke Bryan's "Crash My Party" and Brad Paisley's "Beat This Summer."

As you swelter in the summer heat, just remember that someone somewhere is recording a Christmas album.