In 2013, Erkan accompanied soprano Sarah Brightman on her Dreamchaser World Tour, joining Brightman for the songs "Canto Della Terra" and "The Phantom of the Opera."
World Cup | FIFA World Cup | World Trade Center | World Series | 2011 ATP Challenger Tour | 2012 ATP Challenger Tour | 2013 ATP Challenger Tour | 2010 FIFA World Cup | World Bank | World Health Organization | Guinness World Records | PGA Tour | 1978 FIFA World Cup | World Series of Poker | Allies of World War II | BBC World Service | ATP World Tour 250 series | World Heritage Site | World Boxing Association | World Boxing Council | 2006 FIFA World Cup | Tour de France | World Wide Web | As the World Turns | World Trade Organization | ATP World Tour 250 Series | World Rally Championship | World Intellectual Property Organization | World Economic Forum | Western world |