Bonus U.S iTunes Pre-Order "Circus" Track

From Britney.com

You guys had better pre-order Circus, because if you do... Britney's gonna buy you a Frappuccino! Haha, I kidd. As much as I love my SBs, this is way better — anyone who pre-orders the album on iTunes will get a hot BONUS track called "Trouble." The iTunes pre-order starts this Tuesday, Nov. 11. The track will NOT be available once Dec. 2 rolls around, so you gotta pre-order that sh*t now, k?