'Idol' runner-up to appear in multi-episode arc during show's fourth season
'Idol' runner-up discusses her performing alter-ego and love of Eminem
'The only reason I really wanted to win was to break that guy reign'
Looking back on Season 11, from Zeppelin covers to Lambert appearances
Becomes the show's fifth consecutive male champion
Final three cover Jackson 5, Bob Seger, Aerosmith