Hell hath no fury like a woman scorned--but could that be a problem for Kelly Clarkson?

The singer and first season American Idol winner is known best for her chart-topping anthems about breakups and bad romance, but now that Kelly is in a happy relationship with talent manager Brandon Blackstock since late last year, she says the process of writing songs hasn't been the same for her.

What's happening to Kelly's creative inspiration? Find out after the jump.

The new singing competition series Duets will team up famous singers with undiscovered hopefuls to perform a duet for votes in front of an audience each week. And even though the show doesn't officially begin until this summer, Duets singer Kelly Clarkson is already campaigning for a win!

At her concert in San Diego on Tuesday she surprised the crowd by inviting Jason Farol and Julianna Guiterrez, the two contestants she chose as her Duets partners, to sing with her on stage!

So does Kelly have a winner on her hands? Watch the videos after the jump and decide for yourself!