Katy Perry's 'Part Of Me' Leaks Online

Uptempo pop-rock tune is reportedly lifted from singer's Teenage Dream recording sessions.

Just a few weeks ago, Katy Perry confessed that she was ready to take her relationship with Russell Brand to the next level by taking his last name. Despite the amorous stage in her life, the pop star appears strong, bold and just a tad resentful after a breakup on the previously unheard pop-rock song "Part of Me," which surfaced on the Internet on Wednesday.

With reported production by pop mastermind Dr. Luke, the song has Perry declaring herself unbreakable after an ugly breakup, singing, "Days like this I want to drive away/ Pack my bags and watch your shadow fade/ 'Cause you chewed me up and spit me out/ Like I was poison in your mouth/ You took my light, you drink me down/ That was then and this is now, now look at me."

Similar to the pop star's hit single "California Gurls," the tune's steady beat amplifies as the chorus opens. "This is the part of me/ That you're never gonna ever take away from me/ Throw your sticks in the stones/ Throw your palms in your clothes/ But you're not gonna break my soul/ This is the part of me that you're never gonna ever take away from me," she sings.

"Part of Me" is rumored to be a leftover cut from the singer's Teenage Dream recording sessions. However, fans have speculated that the track may be included in a yet-to-be-confirmed re-release of the Grammy-nominated LP.

In addition to the new material, fans can rejoice in yet another Perry tune, "E.T.," as online reports have indicated that the futuristic song has been selected as the pop star's next single. Despite multiple live performances of the song, Perry took to Twitter to ask her legion of fans which track they'd like the singer to release next. "Thanks for all your great suggestions for the next single today!" she tweeted on December 13. "Your voice has been heard! We're on the same page..."

What do you think of Katy's latest song? Share your reviews in the comments!