"Arrasando" is the third single from Thalía's 2000 Arrasando album, and it was written by herself. It is recognized as one of her signature songs. Also, it has an English version called "It's My Party". Although both share a general theme of optimism about the human race moving on from mistakes of the past, the English version is an entirely new lyric, rather than a translation. "It's My Party" later appeared on the album Thalía's Hits Remixed.

The music video was shot in Los Angeles, and it was directed by Simon Brand, who had directed also her two previous videos. Two versions of this video were filmed - Spanish and English.

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