Task: Question Answering
Input (English): Passage: By 2008, Gaga had relocated to Los Angeles to work extensively with her record label to complete her debut album, The Fame, and to set up her own creative team called the Haus of Gaga, modeled on Andy Warhol's Factory. The Fame was released on August 19, 2008, reached number one in Austria, Canada, Germany, Ireland, Switzerland and the UK, and the top five in Australia and the US. Its first two singles, "Just Dance" and "Poker Face", reached number one in the United States, Australia, Canada and the UK. The latter was also the world's best-selling single of 2009, with 9.8 million copies sold that year, and spent a record 83 weeks on Billboard magazine's Digital Songs chart. Three other singles, "Eh, Eh (Nothing Else I Can Say)", "LoveGame" and "Paparazzi", were released from the album; the last one reached number one in Germany. Remixed versions of the singles from The Fame, except "Eh, Eh (Nothing Else I Can Say)", were included on Hitmixes in August 2009. At the 52nd Annual Grammy Awards, The Fame and "Poker Face" won Best Dance/Electronica Album and Best Dance Recording, respectively.Following her opening act on The Pussycat Dolls' 2009 Doll Domination Tour in Europe and Oceania, Gaga headlined her worldwide The Fame Ball Tour, which ran from March to September 2009. While traveling the globe, she wrote eight songs for The Fame Monster, a reissue of The Fame. Those new songs were also released as a standalone EP on November 18, 2009. Its first single, "Bad Romance", was released one month earlier and went number one in Canada and the UK, and number two in the US, Australia and New Zealand. "Telephone", with Beyoncé, followed as the second single from the EP and became Gaga's fourth UK number one. Its third single was "Alejandro", which reached number one in Finland and attracted controversy when its music video was deemed blasphemous by the Catholic League. Both tracks reached the top five in the US. The video for "Bad Romance" became the most watched on YouTube in April 2010, and that October, Gaga became the first person with more than one billion combined views. At the 2010 MTV Video Music Awards, she won eight awards from 13 nominations, including Video of the Year for "Bad Romance". She was the most nominated artist for a single year, and the first female to receive two nominations for Video of the Year at the same ceremony. The Fame Monster won the Grammy Award for Best Pop Vocal Album, and "Bad Romance" won Best Female Pop Vocal Performance and Best Short Form Music Video at the 53rd Annual Grammy Awards. 
Question: On what platform did Gaga become the first person with more than one billion combined views?
Output (English): YouTube.