Pickler, Chesney supplant Rucker on charts

Pickler joins a select group of artists who have seen their first and sophomore albums debut at number one on Billboard's Country Album Chart in the SoundScan era. Pickler becomes only the sixth country artist to achieve this feat, last accomplished by fellow American Idol alum Carrie Underwood. The new CD also debuted at number 9 on the all genre, Billboard 200, equaling her 2006 debut album, "Small Town Girl."

Pickler said, "It's a great honor to have both of my albums debut at number and in these really tough times when people are dealing with the high cost of gas, groceries and a terrible economy, the fact fans went out spent their hard earned dollars on my music means so much to me. Thank you from the bottom of my heart."

Chesney scores his 15th number one song and 12th this decade, moving him within one of Toby Keith's mark in the 2000s. Taylor Swift will earn her sixth top 10 single, climbing from 11th to 9th with Love Story.