Question: What song was presented by Mirjam Weichselbraun at the biggest charity event in Europe supporting people with HIV? 

Context articles: Eurovision Song Contest 2015
Dancing Stars (Austria season 11)
Austria in the Eurovision Song Contest 2005
Dancing Stars (Austria season 9)
Dancing Stars (Austria season 6)
Mirjam Weichselbraun
Dancing Stars (Austria season 7)
Dancing Stars (Austria season 8)
Life Ball
Dancing Stars (Austria season 10)

The Eurovision Song Contest 2015 was the 60th edition of the annual Eurovision Song Contest musical event.
 The contest took place in Vienna, Austria, following Austrian Conchita Wurst's victory in the 2014 edition.
 This was the second time that Austria hosted the contest; the 1967 edition being the first (also hosted in Vienna).
 The 2015 contest consisted of two semi-finals, which took place on 3-4 October, and a final, held on 5 October 2015.
 The shows were presented by Mirjam Weichselbraun, Alice Tumler and Arabella Kiesbauer while Conchita Wurst was hosting the green room.
 Forty countries participated in the contest, with Australia making a guest appearance, and Cyprus , the Czech Republic , and Serbia returning.
 Ukraine , however, announced their withdrawal due to financial and political reasons around the Ukrainian crisis.
The eleventh edition of Dancing Stars will be broadcast from March 31, 2017 on ORF1 and presented by Mirjam Weichselbraun and Klaus Eberhartinger.
The Austrian pre-selection "song.null.fünf" was held on 25 February at the ORF TV Studios in Vienna, hosted by Mirjam Weichselbraun and Christian Clerici.
 The winner was chosen by regional televoting and mobile phone voting.
 By a four-point margin, Global Kryner was chosen over 2003 Austrian representative, Alf Poier, with the song "Y así".
 The song is an Austrian folk tune with yodeling, sung in English and Spanish.
 The song was written by Christof Spörk and composed by Christof Spörk and Edi Köhldorfer.
The ninth edition of Dancing Stars will be broadcast from March 7, 2014 on ORF1 and will be presented by Mirjam Weichselbraun and Klaus Eberhartinger.
The sixth edition of Dancing Stars was broadcast from March 11 to May 27, 2011 on ORF1 and was presented by Mirjam Weichselbraun and Klaus Eberhartinger.
Mirjam Weichselbraun (born 27 September 1981 in Innsbruck, Austria) is an Austrian television host and actress, best known in Austria for presenting "Dancing Stars", Life Ball and the Vienna Opera Ball.
 She is best known outside Austria for presenting the Eurovision Song Contest in 2015.
The seventh edition of Dancing Stars was broadcast from 9 March to 18 May 2012 on ORF1 and was presented by Mirjam Weichselbraun and Klaus Eberhartinger.
The eighth edition of Dancing Stars was broadcast from March 1 to May 17, 2013 on ORF1 and was presented by Mirjam Weichselbraun and Klaus Eberhartinger.
The Life Ball in Vienna is the biggest charity event in Europe supporting people with HIV or AIDS.
 The event is organized by the nonprofit organization AIDS LIFE, which was founded in 1992 by Gery Keszler and Torgom Petrosian.
The tenth edition of Dancing Stars will be broadcast from March 4, 2016 on ORF1 and will be presented by Mirjam Weichselbraun and Klaus Eberhartinger.