Complex sentence: He made several media appearances prior to his debut with Exo, includingTVXQ's music video, "HaHaHa Song" with Suho and Kai in 2008, and in 2010, he starred in the music video of Girls' Generation Japanese single, "Genie".
Split into simpler sentences: He made several media appearances prior to his debut with EXO, including TVXQ's music video, "HaHaHa Song" with fellow members Suho and Kai in 2008. In 2010, he starred in the music video of Girls' Generation Japanese single, "Genie".