Strictly Come Dancing: Kelvin Fletcher fights back tears after scoring his FIRST 40 with Oti Mabuse... as the four couples perform TWO DANCES in a tense semi-final<br />Karim Zeroual and Amy Dowden took on a tough Argentine Tango in the Strictly Come Dancing semi-final, which impressed the judges who commended him for taking on such a challenging routine so close to the end
