31 new tracks will be heading to Jam With The Band/Band Bros. in Japan next month on a GBA cart expansion pack!

The Band Bros. Expansion Cartridge will be available from September 26 exclusively via Nintendo's online store. Costing only �2,530 (with a �450 shipping charge) the expansion equates to less than �15 in total and will contain 31 new songs - almost the same number as the original game!

22 new tunes from various Japanese artists are in the expansion, along with 9 Nintendo tracks - including Ashley's Theme from Wario Ware Touched!, the Princess Peach's Slide music from Mario 64, the Star Wolf theme from Star Fox 64, and music from Yoshi's Touch 'n Go, Animal Crossing, Yoshi's Island and DK Jungle Beat.

It's the first time a DS game is being expanded via a GBA cart, though as we reported earlier today, Metroid Prime Pinball will make use of a special rumble pak put in the GBA cart slot as well.