Billboard magazine has unveiled their year-end charts for 2010 and its little surprise that Lady Gaga is the Artist of the Year just one year after receiving the New Artist of 2009. She has two albums in the top 13 for the year and four singles in the top 100.

New artists of the year goes to Ke$ha who had the biggest single of the year with Tik Tok. She is the first woman in the 64 year history of the Billboard charts to have the biggest single of the year with her debut.

The biggest album of the year goes to Susan Boyle's I Dreamed a Dream which spent six weeks at number one during the eligibility period.

Lady Antebellum also makes history by being the first Top Duo/Group for the year from the country genre.