Korea’s hottest R&B duo Fly to the Sky has kept a low profile since the release of their remake album “Recollection” in April. They were seen in only a few music programs and music videos. Instead they devoted their time and energy to preparing for this summer concert. Starting in Seoul, the two will embark on a world tour, which is scheduled to include stops at the International Exhibition Hall in Tokyo, the Walt Disney Concert Hall in Los Angeles and the Oakland Chabot College Performing Arts Center in San Francisco. Their summer concert will offer a refreshing respite from summer heat with a variety of events and their own interpretations of all-time hits featured in “Recollection.”