Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.

Karen O is the lead singer with which band that made a breakthrough in this decade Yeah Yeah Yeahs, Coldplay, Kings of Leon, The Killers?
yeah yeah yeahs

Filbert Fox is the mascot of which English football club?
leicester city f.c.

Felipe de Jesus Calderon Hinojosa became President of which country in December 2006?

mexico