4 chords can make tons of hit songs

I was totally amazed by how using 4 chords can create so many wonderful hits. Here is the group that make it possible below and also included below is a list of songs they played (adapted from a blog I visit) and hope you all will like it:

You’re beautiful by James Blunt,
Forever young by the Alphaville (covered by Youth Group),
I’m yours by Jason Mraz,
Amazing by Alex Lloyd,
Wherever you go by the Calling,
Can you feel the love tonight by Elton John,
She will be loved by Maroon 5,
Pictures of you by the Last Goodnight,
Cigarettes will kill you by Ben Lee,
With or without you by U2,
Fall at your feet by Crowded House,
Am I not pretty enough? by Kasey Chambers,
Let it be by The Beatles,
Under the bridge by RHCP,
Horses by Darryl Braithwaite,
Down under by Men at Work,
Waltzing Matilda,
Old Australia’s funniest Homevideos intro,
Taylor by Jack Johnson,
2 become 1 by the Spice Girls,
Take on me by A-ha,
When I come around by Green Day,
Save tonight by Eagle Eye Cherry,
Africa by Toto,
If I Were A Boy by Beyonce,
Self Esteem by the Offspring,
Apologize by One Republic,
U + Ur Hand by P!nk,
Pokerface by Lady Gaga,
Barbie Girl by Aqua,
Kids by MGMT,
Scar by Missy Higgins.