The all-new Community Remix feature puts players in the global spotlight by allowing them to become a Just Dance coach that players everywhere can dance along to. Just Dance 2015 also introduces Challenger mode where players will be able to compete against their past performances or challenge friends anywhere to beat their score, even if they can't play at the same time. Plus, this year we're bringing even more excitement to World Dance Floor, the online multiplayer mode. Announced tracks include: ''Happy'' by Pharrell Williams ''Burn'' by Ellie Goulding ''Summer'' by Calvin Harris ''Love Me Again'' by John Newman ''Tetris'' by Dancing Bros. ''I Love It'' by Icona Pop Ft. Charli XCX ''Only You (And You Alone)'' by Love Letter ''Holding Out For A Hero'' by Bonnie Tyler ''The Fox (What Does The Fox Say?)'' by Ylvis ''Walk This Way'' by Run DMC & Aerosmith.