American Idol Season 8 winner Kris Allen and fourth-place finisher Allison Iraheta performed as special guests at the Top 24 results show night of American Idol Season 9 just recently. Allen performed his Haiti single Let It Be and Iraheta performed her brand new single Scars from debut album Just Like You. Kris album sales leaped 66% from last week, shifting just over 7, 000 copies. Allison's sales almost tripled as Just Like You re-entered the Billboard 200 albums chart shifting over 3, 000 copies up from just a thousand the week before. Digital gains also leaped, most notably for Allison as Just Like You leaped by a large amount of 603% and 241% for Kris. Also, Allison has shifted 54, 000 copies of debut single Friday I'll Be Over U and 20, 000 for Scars while Kris shifts 21, 000 for Alright With Me.