I'm thinking it's "The Little Heroes" "Come On".... anyhow here are all the songs used in the first 2 episodes...
Rihanna, "Umbrella"
Jordan Pruitt, "My Reality"
Alyssa Atherton, "Spinning"
*****cat Dolls, "Wait A Minute"
Lloyd, "Get It Shawty"
Amy Winehouse, "Rehab"
The Feeling, "Find My Little World"
Cori Yarckin, "How The World Goes Around"
Muse, "Supermassive Black Hole"
One Republic, "Apologize"
Kate Voegele, "Facing Up"
Laura Izibor, "From My Heart To Yours"
Mark Ronson (Feat. Lily Allen), "Oh My God"
Lover's Electric, "Won't Give In"
Shop Boyz, "Party Like A Rockstar"
Ladytron, "Sugar"
Swizz Beatz, "It's Me Snitches"
I-94, "ice On My Tongue"
Marie Digby, "Umbrella"
Fergie, "Big Girls Don't Cry"
Interpol, "Heinrich Manuever"
Don McCloskey, "Live from the Other Side"
Sean Kingston, "Beautiful Girls"
Lily Allen, "LDN"
The Blakes, "Modern Man"
SR-71, "Right Now" ((((((((((((("*I love this one!!!*)!!!

))))))))))))
Albert Hammond Jr, "101"
The Little Heroes, "Come On" ***I think this is what you're looking for...***
Here is their MySpace, you can hear the song here...
MySpace.com - The Little Heroes - SANTA BARBARA, California - Indie / Alternative / Rock - www.myspace.com/thelittleheroes
alright Cheers...Hope that helped!