Looks like the latest DLC is Radiohead. It's available for the PC version now and will be available for 360/PS3 on Tuesday.
http://store.steampowered.com/app/258383/
Rayman Jungle Run codes:
EXTMYT696WMT
JWAYRXXL7HA9
A7XEN74KN4FL
MWPPPKF9AL67
HAHHALENAF3T
After redeeming a code, please reply to this post so everyone knows. Thanks!