. . . . . . . "227.0"^^ . "Platinum" . . "Best Days of Your Life"@en . . "2008-12-01Z"^^ . . "\"Best Days of Your Life\" is a song written and performed by American country artist Kellie Pickler, and co-written by Taylor Swift. It was released on December 1, 2008 as the second single from her self-titled second album. Swift also provides background vocals on the song."@en . .