To mark\u00a0the release of\u00a0Rock Band Rivals on 18\u00a0October,\u00a0Harmonix has revealed 18 new tracks that will join the Rock Band 4 library this month. The first two tracks are from Harvey Danger and Jane's Addiction and will be available to\u00a0purchase on PlayStation 4 and Xbox One\u00a0from 4th October. \tHarvey Danger \u2013 Flagpole Sitta \tJane\u2019s Addiction \u2013 Stop Other new tracks coming\u00a0to the\u00a0Rock Band library in\u00a0October include songs\u00a0from Andy Grammer and Shawn Mendes. Two tracks from Maroon 5 and Matchbox Twenty are available via\u00a0Amazon exclusive pre-orders. \tAndy Grammer \u2013 Honey, I\u2019m Good. \tThe Chainsmokers ft. Halsey \u2013 Closer \tShawn Mendes \u2013 Treat You Better \tSia ft. Sean Paul \u2013 Cheap Thrills \tMaroon 5 \u2013 One More Night (Amazon-exclusive pre-order bonus) \tMatchbox Twenty \u2013 3am (Amazon-exclusive pre-order bonus) The following ten songs will be made available on 18 October, for free, to players who have pre-ordered either the\u00a0Rock Band Rivals Wireless Jaguar Bundle,\u00a0Rock Band Rivals Band Kit\u00a0or the\u00a0Rock Band Rivals Digital Download. \tBring Me The Horizon \u2013 Happy Song \tCapital Cities \u2013 Safe and Sound \tEagle-Eye Cherry \u2013 Save Tonight \tThe Neighbourhood \u2013 Sweater Weather \tOf Monsters And Men \u2013 Little Talks \tPharrell Williams \u2013 Happy \tSemisonic \u2013 Closing Time \tSia \u2013 Chandelier \tSkillet \u2013 Feel Invincible \tWeezer \u2013 King of the World These tracks will also be added to the\u00a0Rock Band 4 DLC music library later this month,\u00a0priced\u00a0$1.99 each,\u00a0or as part of the Rock Band Rivals Launch Pack bundle. Buy\u00a0Rock Band 4 on\u00a0Amazon.