Season 1 - Kelly and Rj
Season 2 - Josh Gracin and Ruben
Season 3 - Geroge Huff
Season 4 - Constantine and Carrie
Season 5 - Ace Young, Daughtry, Katharine and taylor, and Paris
Season 6 - Chris Richderson and Jordin Sparks
Season 7 - David Archulater, Michael Johns, Carly Smithson, Brooke white
Season 8 - Adam Lambert
Season 9 - Lee Dewyze
Season 10 - Scotty McCreery
Season 11 - Colton Dixon, Philip Phillips
Season 12 - Angie Miller and Johnny Keyser
Season 13 - Sam Woolf, Alex preston, Caleb
Season 14 - Clark Beckham and Nick Fradaini
Season 15 - Trent Harmon