Last night the guest mentor on American Idol 7 was Grammy winner Mariah Carey … now, keep in mind, it has to take a lot of efforts from the Top 7 idols to match Mariah’s strong voice! And we all know how every time the contestants take on a Mariah or Whitney song … they don’t do very well!
Well, Mariah was there and so was her little white dog! She’s a diva alright!
In all cases, let’s start with the boys, who are now out-numbered by the girls.
David Archuleta kicked off the show with his version of Mariah’s ‘When You Believe’.
Little David pulled it off, Randy and Simon both thought he did very well.
David Cook sang 'Always Be My Baby' and boy did he give a swell performance!
Randy tells him that he's ready for an album and Simon tells him: "coming out of karaoke hell into a breath of fresh air. It was original, it was daring, it stood out by a mile".
Jason Castro chose to do 'I Don't Want to Cry' and gives it a new mellow do!
This time Paula and Simon agree that it was good and Simon says that the guys have won the night!
Let's see what the girls did with Mariah's songs ... after the jump ...

So, the first girl to sing was Carly Smithson and she chose 'Without You'.
Carly tried her best, but wasn't able to pull it off really. Her version of the song would be an 'OK' version, not more!
Syesha Mercado sang 'Vanishing' and did just fine.
Syesha chose a difficult song, that not many people are familiar with ... and that won't work for her much!
Brooke White chose to do 'Hero'. Brooke shakes as she performs, but that's expected, 'Hero' isn't a song to toy with!
Simon makes a strange analogy though ... he says her performance was like ordering a hamburger with no meat ... because the middle part was missing! Hmm ...
Kristy Lee Cook sang 'Forever' and she does good. The judges agree that Kristy is showing a lot of improvement in the past couple of weeks.

So ... Will the danger zone tonight be a set of girls? Who will leave?
i have a feeling that a girl is going to be packing her stuff and leaving the show, because the guys did so much better last night! What's your take on that?