charts in the week following was strong. Rapper 360 and his song, "Boys Like You," entered the Hottest 100 at number 8, and the following week, it rose to number 2 on the iTunes singles chart and number 3 on the ARIA singles chart. A similar movement included Matt Corby's "Brother"-number 3 in the 2011 Hottest 100 countdown-also rising to number three on the ARIA charts. The most prominent Australian song during 2011 and early 2012 was Gotye's "Somebody That I Used To Know" which reached number 1 in 11 countries, including Australia, New Zealand, Germany, Austria, Belgium, Canada, the United States and the United Kingdom. The song also reached number 1 on the Triple J Hottest 100 of 2011 countdown and featured New Zealander pop singer, Kimbra, who also placed three times on the Triple J Hottest 100 as a solo artist. Electropop Electropop in Australia had been dominated by the use of synthesizers and Auto-Tune, which became popular because of newcomers, like Havana Brown, Elen Levon, Timomatic, and Justice Crew, as well as 2000s players, such as Brian McFadden, Zoe Badwi, Natalie Bassingthwaighte, Sneaky Sound System, and The Potbelleez. The most successful songs of this subgenre have been Brown's "We Run the Night," Timomatic's "Set It Off," Justice Crew's "Friday to Sunday," McFadden's "Just Say So," and Badwi's "Freefallin'." Contemporary R&B Contemporary R&B in Australia was not as widespread in the early 2010s as it was in the 2000s; however, artists, including Guy Sebastian, Jessica Mauboy, and Stan Walker, continued to produce music that was commercially successful. During 2010, Sebastian's single, "Who's That Girl," featuring American rapper Eve, reached number 1 on the ARIA Singles Chart and became his fifth number 1 single in Australia. This made him the only Australian male instrumentalist in Australian music history to achieve five number 1 singles. Mauboy had released many commercially successful top 20 singles, like "Saturday Night" featuring American rapper Ludacris, "What Happened to Us" featuring English musician Jay Sean, and "Galaxy" with Walker, all of which have been certified platinum. In August 2010, Walker's second album entitled From the Inside Out was released; it debuted at number 2 on the ARIA Albums chart. Hardstyle Hardstyle had become more mainstream in Australia, with events, such as "Defqon 1," HSU, Powerhouse Events & "IQON," by Q-dance. Australian hardstyle players have been Code Black, Toneshifterz, Audiofreq, Kamikaze, Outbreak, and Rebourne. Future garage