Several studies concluded that diets low in fat (under 15% of total calories) significantly decreased testosterone levels while diets higher in fat (above 30% of total calories) increased serum testosterone levels. Rather than continuing with this discussion I will provide a link to an article which covers the subject quite nicely. To simplify everything that I have said, it seems that one should not lower fat below 15% of daily calories unless they would like to face extreme testosterone deficiencies. Likewise, one should not increase fat to say 40% in order to increase testosterone. Although fat increases testosterone to a degree, it is important to remember that testosterone is only a small piece of the larger puzzle. There are many other hormones and factors involved in building muscle other than just testosterone. By increasing fat to extremely high levels, there will be less “space” for carbohydrates and protein, both of which are very important for aforementioned reasons.
The interval acts of both semi-finals were sketches choreographed by Fredrik Rydman : "The Grey People" in the first semi-final and "Man meets machine" in the second semi-final respectively. The EBU announced on 9 May that one of the interval acts of the final would be a world premiere live performance of " Can't Stop the Feeling! " and " Rock Your Body " by Justin Timberlake.  He was the first "global megastar" in the contest's 61-year-history to perform during the interval.  Other interval acts in the final included a sketch called "Love Love Peace Peace", a pastiche of past entries such as No Name 's song " Zauvijek moja " featuring appearances from Lordi and Alexander Rybak , winners of the contest in 2006 and 2009 respectively,  a sketch starring Lynda Woodruff, played by Sarah Dawn Finer , and a performance by " Fire in the Rain " and "Heroes" by Zelmerlöw, both from his latest album Perfectly Damaged .