Question: The 2015 MTV EMAs (also known as the MTV Europe Music Awards) were held at the Mediolanum Forum in Assago, in Italy, which Australian actress hosted the awards?
Context: The 2016 MTV EMAs (also known as the MTV Europe Music Awards) were held at the Rotterdam Ahoy in Rotterdam, Netherlands, on 16 September 2016.  It was hosted by Bebe Rexha.  This was the third time the awards have taken place in the Netherlands, and the second time Rotterdam has been the host city.  The awards were held in the same venue as the 1997 MTV EMAs. The 2017 MTV EMAs (also known as the MTV Europe Music Awards) will be held at The SSE Arena in Wembley, London, United Kingdom, on 12 November 2017.  The host of this ceremony is Rita Ora.  This will be the sixth time that the UK has hosted the awards show, and the second time London has been the host city.  London first hosted the awards ceremony in 1996 at Alexandra Palace. As of June 2017, Nigerian recording artist Wizkid has received a total of 43 awards from 157 nominations.  He is the recipient of two BET Awards, three Billboard Music Awards, two iHeartRadio Music Awards, one MTV Europe Music Awards, four MTV Africa Music Awards, one iHeartRadio Much Music Video Awards,two SoundCity MVP Awards, one African Pride Award, two MOBO Award, six The Headies Awards, two Channel O Music Video Awards, six Nigeria Entertainment Awards, two Ghana Music Awards, two Dynamix All Youth Awards, two City People Entertainment Awards, and a Future Award.  In addition, he has been nominated five times at the MTV Europe Music Awards, three times at the American Music Awards, once at the Grammy Awards, as well as four times at the World Music Awards. The 2014 MTV EMAs (also known as the MTV Europe Music Awards) were held at The SSE Hydro, Glasgow, Scotland on 29 September 2014.  Bruce Gillmer, from Viacom International Media Network (VIMN), confirmed the ceremony would be held in Glasgow for the first time.  This was the first time since 2003 when the awards were held in Scotland and the fifth time the United Kingdom has hosted the MTV EMA since the show was hosted in Belfast, Northern Ireland.  The event showcases the world's hottest musical acts in a different city each year.  The event was hosted by Nicki Minaj. The MTV Europe Music Awards 2009 took place in Berlin, Germany at the O2 World and Brandenburg Gate.  The awards ceremony was presented by Katy Perry joined by British football commentators Alan Green and Mike Ingham as co-hosts.  It was the fourth time that the MTV Europe Music Awards were hosted in Germany.  Nominations for regional awards were announced on 1 September 2009, followed by those of the main awards on September 21, 2009.  Pete Wentz was the host for the 2009 MTV Europe Music Awards webcast. Ruby Rose Langenheim (born 20 March 1986), better known as Ruby Rose, is an Australian model, DJ, recording artist, actress, television presenter, and former MTV VJ.  Rose emerged in the media spotlight as a presenter on MTV Australia, followed by several high-profile modelling gigs, notably as the face of Maybelline New York in Australia.  In addition to her modelling career, she has co-hosted various television shows, namely "Australia's Next Top Model" and "The Project" on Network Ten. Alexandra Irina Măruță (born 23 August 1986 in Câmpia Turzii), better known by her stage name Andra, is a Romanian singer and judge at Românii au talent.  In 2007, she received Gold and Platinum certification for the album "De la frate la soră".  She collaborated with Dan Bittman, Direcția 5, What's Up, Vunk, Marcel Pavel, Marius Moga, Smiley and the band Simplu.  Andra presented the TV shows "Singuri cu vedeta" on Antena 1 and "O-la-la" on Pro TV. In 2013 she was nominated at the MTV Europe Music Award for Best Romanian Act at the 2013 MTV Europe Music Awards.  In 2014 she won the MTV Europe Music Award for Best Romanian Act at the 2014 MTV Europe Music Awards.  her song, why, topped at number 8 in billboard. The 2008 MTV EMAs (also known as the MTV Europe Music Awards) were held at the Echo Arena in Liverpool, England, on 27 September 2008.  It was hosted by Katy Perry.  This was the second time the awards have taken place in England. The 2015 MTV EMAs (also known as the MTV Europe Music Awards) were held at the Mediolanum Forum in Assago, near Milan, Italy, on 22 September 2015.  This was the third time the awards have taken place in Italy, second time Assago has been the host city, and the first time that the awards have been held in October.  The awards was held in the same venue as the 1998 MTV EMAs.  On 30 September 2015, it was announced that singer Ed Sheeran would host the awards, along with actress Ruby Rose. The 2011 MTV EMAs (also known as the MTV Europe Music Awards) were held in Northern Ireland's capital Belfast, on Saturday, September 24, 2011, at the Odyssey Arena in the Titanic Quarter area of the city and were hosted by Selena Gomez and Paul Clark.  Additional live venues for the awards show include Ulster Hall and Belfast City Hall.
Answer: Ruby Rose Langenheim