It was another historic night for American Idol — the show’s first contestants’ duet debuted to wild acclaim! =) This week’s guest mentor was rock superstar Slash. The most surprising thing about him was that he was lucid and was actually giving good pointers to the top 4! Anyway, here’s a quick recap: Adam Lambert kicked off the night with “Whole Lotta Love” by Led Zeppelin. He sang it in its original entirety and nailed it to the audience and judges’ delight. Allison Iraheta performed Janis Joplin’s screaming “Cry Baby”. She got mixed reviews from the four judges.

Next up was Kris Allen and Danny Gokey’s duet on “Renegade”. They were awesome!! Simon Cowell thought Danny sang better. Then Kris Allen performed the Beatles’ “Come Together”. The judges skewered his performance but personally I thought it was amazing! Kris isn’t a rocker so it was a surprise he managed to perform well =) Last was Danny Gokey who did Aerosmith’s “Dream On”. The highlight was whether he will hit the famous last note — he did but sounded like a wailing cat! LOL! The judges gave him A+ for courage

Adam Lambert performs “Whole Lotta Love” by Led Zeppelin

Danny Gokey & Kris Allen duets for “Renegade”