Willie Nelson, 'Country Music' AlbumWillie Nelson's latest album, simply titled 'Country Music,' is simply making a lot of country fans happy. The collection, his first for Rounder Records, debuts this week at No. 4 on Billboard's Top Country Albums chart, selling 18,000 copies in its first week, according to Nielsen Soundscan data. Willie is joined by another iconic American, Merle Haggard, whose Vanguard debut, 'I Am What I Am,' makes its chart bow at No. 18.

Scoring a Top 10 debut, 'Chicken & Biscuits' from Colt Ford enters the chart at No. 8, selling 15,000 copies.

And while some new music is making waves, that heavy-metal power trio, Lady Antebellum, are still riding the crest of the wave, holding on to the No. 1 spot with 'Need You Now.' No doubt, sales this week were helped out by the group's three ACM Award wins.The album has also jumped back up to the No. 2 position on the multi-genre Billboard 200. And why heavy metal? Because 'Need You Now' has been certified double-platinum this week, having sold two million copies since its release!

Miranda Lambert, the other big 2010 ACM winner, had the No. 6 album last week, and this week 'Revolution' roars back to No. 3, selling another 25,000 copies.

The Zac Brown Band, who are holding at No. 2 on the country albums chart, are also nearing double-platinum with 'The Foundation,' while Taylor Swift is edging close to six million sold of her sophomore release, 'Fearless.'