Michael Henrichsen poses in his bedroom at his home in Seattle. Henrichsen created a website and enlisted friends and celebrities around the world in a two-year effort to convince Idol to come play a concert on Friday at a Seattle music venue to raise money for charity and celebrate Henrichsen's birthday. Idol agreed to do so. Story here. (AP Photo/Ted S. Warren)

Question: Which singer would you want to perform at your next birthday?