Question: The seventh season of American Idol, the annual reality show and singing competition, began on January 15, 2008, David Cook was announced the winner of the competition on May 21, 2008, defeating who, which American singer-songwriter, musician, and actor, as runner-up?

<P0-S0> American Idol is an American singing competition television series created by Simon Fuller, produced by FremantleMedia North America and 19 Entertainment, and distributed by FremantleMedia North America. <P0-S1>  It began airing on Fox on June 11, 2002, and ended its first-run on April 7, 2016. <P0-S2>  In 2018, the show will make its debut on ABC. <P0-S3>  It started off as an addition to the "Idols" format based on the British series "Pop Idol", and became one of the most successful shows in the history of American television. <P0-S4>  The concept of the series involves discovering recording stars from unsigned singing talents, with the winner determined by the viewers in America through telephones, Internet, and SMS text voting. <P0-S5>  Winners chosen by viewers in its fifteen seasons were Kelly Clarkson, Ruben Studdard, Fantasia, Carrie Underwood, Taylor Hicks, Jordin Sparks, David Cook, Kris Allen, Lee DeWyze, Scotty McCreery, Phillip Phillips, Candice Glover, Caleb Johnson, Nick Fradiani, and Trent Harmon. <SEP> <P1-S0> American Juniors is an American reality television singing competition series that was broadcast for one season, in 2003, on the Fox Network. <P1-S1>  The series was a spin-off of "American Idol", but with younger contestants, and had the same production team as "American Idol": it was created by Simon Fuller and 19 Entertainment, along with FremantleMedia, and directed by Bruce Gowers, and produced by Nigel Lythgoe and Ken Warwick. <P1-S2>  However, unlike "American Idol", the goal of the competition was not to find a single winner, but rather to create a singing group of five of the contestants. <P1-S3>  In this way, "American Juniors" more closely resembled the British series "S Club Search", which had produced the group "S Club Juniors". <SEP> <P2-S0> The seventh season of American Idol, the annual reality show and singing competition, began on January 15, 2008 and concluded on May 21, 2008. <P2-S1>  Ryan Seacrest continued to host the show with Simon Cowell, Paula Abdul, and Randy Jackson returning as judges. <P2-S2>  David Cook was announced the winner of the competition on May 21, 2008, defeating runner-up David Archuleta by a margin of roughly 12 million votes out of over 97 million, which was at that time the highest recorded vote total ever recorded in the show's history. <P2-S3>  The split was 56 % to 44 %. <SEP> <P3-S0> David James Archuleta (born December 28, 1990) is an American singer-songwriter, musician, and actor. <P3-S1>  At ten years old, he won the children's division of the Utah Talent Competition leading to other television singing appearances. <P3-S2>  When he was twelve years old, Archuleta became the Junior Vocal Champion on "Star Search 2". <P3-S3>  In 2007, at sixteen years old, he became one of the youngest contestants on the seventh season of "American Idol". <P3-S4>  In May 2008 he finished as the runner-up, receiving 44 percent of over 97 million votes.