Elena Alexandra Apostoleanu (Romanian pronunciation: [eˈlena aleˈksandra apostoˈle̯anu]; born October 16, 1986), better known simply as Inna, is a Romanian singer and dancer. Her music is written by Play & Win members,Sebastian Barac, Radu Bolfea and Marcel Botezan. She is best known for becoming the first European female singer to surpass one billion total views on YouTube, having accomplished this milestone on February 2012.

Inna's debut studio album, Hot, was an international success, appearing in many record charts around the world, and particularly popular in the United Kingdom where it reached number one. The album's lead single of the same name also charted worldwide, topping in 2009 a United States year-end chart. The song won the award for the MTV Europe Music Award for Best Romanian Act at the 2009 MTV Europe Music Awards. It got Gold music recording sales certification in Italy, 3× Platinum in Norway and Platinum in Spain.