American singer Kesha has released four full-length studio albums, one compilation album, two extended plays, 31 singles (including 11 as a featured artist), 11 promotional singles, and has made seven other guest appearances. As of 2017, she has sold over 41 million tracks and streams in the United States alone, and over 87 million tracks and streams worldwide. As of 2019, she has also accumulated approximately 7 billion on-demand streams and has sold over 14 million album equivalents worldwide bringing her record sales to stand at over 100 million equivalents worldwide. She is also one of the highest certified digital singles artists in the United States by the Recording Industry Association of America, with 35.5 million certified units as a lead act. She is also certified for 5 million albums in the country alone, bringing her total record certifications to stand at 40.5 million as a lead act. Including features, she is certified for 18 million digital singles, further bringing her total record certifications to 59 million overall in the country. Kesha made her international debut in early 2009, serving as a featured artist on Flo Rida's "Right Round". Despite being uncredited in the United States, the song went number one in the country for six consecutive weeks, broke the record for most first-week sales with 636,000 downloads, and became one of the bestselling songs of the digital era. Kesha's debut studio album, Animal, followed in January 2010 and topped the American, Canadian, and Greek charts. The record's lead single and Kesha's debut solo single, "Tik Tok" (2009), reached number one in fourteen countries and spent nine consecutive weeks atop the Billboard Hot 100, becoming the longest running number one single of 2010. The song has brought total sales of 18 million copies worldwide as of 2019, therefore making it one of the best-selling digital singles of all time. Other singles from Animal, "Blah Blah Blah" (2010), "Your Love Is My Drug" (2010), and "Take It Off" (2010), experienced similar success, as did Kesha's features on 3OH!3's "My First Kiss" (2010) and Taio Cruz's "Dirty Picture" (2010). Kesha topped eight subcharts on Billboard 2010 Year-End Chart, including the Top New Artist, Hot 100 Songs and Hot 100 Artists subcharts, and was named Billboard artist of the year. The commercial and critical success of the singer's first album led to the release of the extended play Cannibal in November 2010, which