The contest was held at the Ericsson Globe and consisted of two semi-finals on 10 and 12 May and the final on , with all three live shows hosted by Zelmerlöw and Petra Mede.
But a New Yorker investigation has mapped out an alleged web of corruption in the Azerbaijani family behind it.
The Mammadov family wields significant influence in Azerbaijan.
Transportation Minister Ziya is close to President Iham Aliyev and was described in leaked diplomatic cables in 2009 as 'corrupt even for Azerbaijan'.
New details of one of President Trump's most controversial business deals have emerged and paint a worrying picture of a hotel project steeped in allegations of corruption in the Middle East.
Trump Tower Baku in Azerbaijan was one of a handful of deals scrapped by the president as he prepared to take office in December.
'The company has, at all times, acted in strict conformity with all applicable legal requirements, including the FCPA, and any suggestion to the contrary is completely unfounded.'Now the hotel stands empty with all work stopped, towering over the city.