Taylor Swift ranks first on a list of the top female artists in 2009 from all genres by Billboard magazine. The list is tallied by the artists' overall chart success during the past 12 months. Beyoncé came in second in the female artist category, followed by Lady Gaga, Miley Cyrus, Britney Spears, Pink, Katy Perry, Kelly Clarkson, Rihanna and Keri Hilson. No male country stars were included on the list of top male artists, which was topped by Kanye West. Following Swift, the Top 10 country artists of the year are, in descending order, Rascal Flatts, the Zac Brown Band, Keith Urban, Sugarland, Darius Rucker, Kenny Chesney, George Strait, Toby Keith and Jason Aldean. Swift celebrates her 20th birthday Sunday (Dec. 13).