Hey guys, i wanna get better at harder chord changes and i wanna learn new chords. So can u guys suggest me some cool songs with loads of chord changes. jazz chords, open chords barre chords any songs that u know of that are or were challenging and just generally loads of chords and changes haha i think u get the idea!

Any help is greatly appreciated! Cheers!
The Benny Goodman version of Sing Sing Sing took me a while to get the chord changes down.

Lots of dim and 6 chords
The acoustic guitar in the background of William It Was Really Nothing by the Smiths is a rhythm workout, fast strumming and chord changes. Not sure if there's a good tab for it but mine's from Guitar Techniques mag.
Elton John's "your song" is pretty chordy for beginners.
scratch that, just re-read your post... you want harder songs
need more gear and a lot more talent(courtesytuxs)
That acoustic version of Pardon Me by Incubus is always fun to play and has tons of chords
How about some jazz standards? Blue Bossa, Autumn Leaves, In a Sentimental Mood, etc.

Pick up a jazz "real book" for some inspiration and you'll find plenty of challenging chord work for learning jazz chords.