Kelly Clarkson fans got a big sneak preview of the singer's upcoming album over the weekend when three tracks reportedly slated for her fifth effort leaked onto the Internet.

The leaks came less than a week after another never-before-heard song, the rocking "Let Me Down," popped up online amid rumors that it could be the first single from the still-untitled follow-up to 2009's return-to-form All I Ever Wanted.

Though the audio tracks were quickly pulled down, a number of sites that got a listen described the songs as very different from the angsty "Let Me Down." One, "What Doesn't Kill You," reportedly features the lines, "What doesn't kill you makes you stronger/ Stand a little taller/ Doesn't mean I'm lonely when I'm alone." The Idolator blog described that song as a Pink-style empowerment anthem.

Another leaked song, titled "Forgive You," is a peace offering to a person from her past, in which Clarkson sings, "We were just a couple of kids trying to figure out how to live, doing it our way/ No shame, no blame, 'cause the damage is done."

She's back to her old tricks in "Dumb + Dumb = U," a slap at an unnamed ex who clearly rubbed her the wrong way. The song reportedly has the same pop-rock vibe as Clarkson's smash hit "Since U Been Gone." In the latest effort, she gets her revenge in lyrics such as "It ain't rocket science/ I may not be Einstein, but I know that dumb plus dumb equals you!"

A spokesperson for Clarkson had no comment on the legitimacy of the songs or if they are slated to be included on the album.

According to an [article id="1660013"]update from Clarkson[/article] earlier this year, the album is due in the fall and she recorded the final tune in late February.

Songwriter Claude Kelly told MTV News in March that the delays in the album's release are tied to efforts by Clarkson's label to ensure the album is set up correctly. "They want to make sure that the arena is clean for [article id="1660319"]Kelly Clarkson's return[/article], 'cause when she comes back, she always comes back pretty big," he said. "They want to make sure when her first single comes out, there's nothing out there that's competing with it. I don't know for sure, but Kelly always does it big, so when it comes out, the fans will be happy and she'll sing her butt off and it'll be good times."