It would appear that Linkin Park have a got a remix contest for their upcoming track, The Catalyst. Aside from signing over all of your rights to Warner Bros you also get to meet the band, $1000 spending money and featured on the album, which is kinda cool!
You can find details here. Getting the stems is a bit of a task, and the deadline is the 25th of July, but could well be worth a bash!
Link me your creations!