Question: What is the real name of the Australian artist that released the song "On Top"?

 His self-titled debut studio album, "Flume", was released on 9 November 2012 to positive reviews, topping the ARIA Albums Chart and reaching double-platinum accreditation in Australia.  Flume is regarded as the pioneer of future bass who helped popularize the genre. Harley Edward Streten, known professionally as Flume, is an Australian record producer, musician and DJ. <SEP> Twenty Ten is a two-disc retrospective album by Australian singer and songwriter Guy Sebastian.  Disc one contains 18 songs from his previous five albums and two new songs, including the lead single "Who's That Girl" which features American rapper Eve.  Disc two has acoustic versions of ten of the songs.  The album was released in Australia on 19 November 2010 and reached number four on the ARIA Album Chart, Sebastian's sixth consecutive top ten album.  It was certified platinum in its fourth week of release and was the fifth highest selling Australian artist album of 2010.  It reached 2× platinum certification in 2014.  "Who's That Girl" reached number one on the ARIA Singles Chart and achieved 5× platinum certification, and was Sebastian's fifth of six number one singles in Australia.  It won the Highest Selling Single ARIA Award in 2011, and received nominations for Single of the Year and Best Pop Release.  Sebastian was also nominated as Most Popular Australian Artist.  "Who's That Girl" also reached number one and Platinum certification in New Zealand. <ref name="Latest Gold/Platinum Singles"> .  RadioScope New Zealand.  Archived from the original on 24 July 2011.  Retrieved 15 January 2012. </ref> <SEP>  It features the vocals from American rapper T.Shirt. "On Top" was released as the first single from Flume's debut studio album, "Flume".  The track reached its peak of number 57 in Australia on 4 March 2013 and was certified Gold. <SEP> "Who's That Girl" is an up-tempo electro R&B song performed by Australian singer-songwriter Guy Sebastian which features American rapper Eve.  It was written by Sebastian, with Eve writing and performing the rap.  Sebastian co-produced the song with Andre Harris.  Released as a digital download on 5 November 2010, it was the only single released in Australia from Sebastian's retrospective album "Twenty Ten".  "Who's That Girl" reached number one on the ARIA Singles Chart, Sebastian's fifth of six number one singles in Australia and Eve's first.  It was also Sebastian's seventh of 12 top ten singles on the Australian charts.  It reached 5× platinum certification in 2014.  "Who's That Girl" was shortlisted for the 2011 APRA Song of the Year and won the APRA Urban Work of the Year.  Sebastian received ARIA Award nominations for Single of the Year and Best Pop Release and won the Highest Selling Single ARIA.  He was also nominated as "Most Popular Australian Artist".  "Who's That Girl" also reached number one and platinum certification in New Zealand, Sebastian's second number one single there. <ref name="Latest Gold/Platinum Singles">Latest Gold/Platinum Singles.  RadioScope New Zealand.  Archived from the original on 24 July 2011.  Retrieved 15 January 2012. </ref>