Help me out....who sings these songs from commericals and what are these songs called because I want to?

download them on walmart.com

The first one is from an I-Pod commercial and its that 1 2 3 4 tell me that you love me more.

The second one is also from an I-Pod commercial. It's that "music is my boyfriend, music is my girlfriend" song.

The third one is that raphsody on demand commercial with that girl where she is playing the piano and it's "and they tell me to breathe easy for awhile and im not gonna write you a love song".

The fourth one is a song and one of the lyrics is "its good to be a geek".

Help please!

The first one is '1234' by Feist.

Second is 'Music Is My Hot Hot Sex' by CSS/Cansei de Ser Sexy.

The third is called 'Love Song' by Sara Bareilles.

I believe the last is 'Hail To The Geek' by Deaf Pedestrians, but you should double check because I don't actually have that one in my collection.

The first one is called 1 2 3 4 by Feist. And the second one is called Music Is My Boyfriend by Mahalo.

#3 is Sara Bareilles - Love Song
#4 is Deaf Pedestrians - Hail To The Geek

Yes, the first one is 1234 by Feist but the second one is called Music is my hot, hot sex by CSS. I don't know the others