One of the first significant K-pop events to be held in the United States were Rain's 2006 sold-out concerts in New York City and in Las Vegas 6 months later. In 2009, the Wonder Girls became the first K-pop artist to debut on the Billboard Hot 100 singles chart. They also joined the Jonas Brothers in the Jonas Brothers World Tour 2009. In 2010, they toured 20 cities in the United States, Canada and Mexico, and were named House of Blues "Artist of the Month" for June.