Who wrote the song of waving flag?

The song "Wavin' Flag" was written by K'naan. Born Keinan Abdi Warsame on February 1, 1978, in Mogadishu, Somalia, K'naan is a Somali-Canadian rapper, singer, songwriter, record producer, and activist. He is best known for his hit song "Wavin' Flag", which was featured in the Coca-Cola commercial, as well as being the official song for the 2010 FIFA World Cup. K'naan has released six studio albums and has won numerous awards, including two Juno Awards and a Grammy Award nomination.