Taking Back Sunday's emotionally charged, high-energy sound marries the best of hardcore, emo, pop-punk, and indie rock. The New Yorkers find their heaviness in Fugazi's bassy, post-hardcore power, and their lightness in Weezer's bouncy power pop and blink-182's fidgety, youthful punk. In between, they capture Kurt Cobain's angsty vulnerability and Sunny Day Real Estate's visceral poignancy.