Apparently Kelly Clarkson's song Stronger (What Doesn't Kill You) was written for Leona lewis.
Quote:
Vellutato: We signed a writer named Ali Tamposi, via a joint venture publishing deal with Perfect Storm (run by Robin Godfrey Cass & Jorgen Elofsson). Part of my job is to help set up writing collaborations for her and pitch her songs. David Gray (A&R exec for Syco Music, Simon Cowell's company) was putting together a writing camp for Leona Lewis, so Robin and I set up Ali, Jorgen Elofsson and David Gamson to write for Leona. They scheduled a writing session, but then Ali called me—she said she'd just broken up with her boyfriend of seven years, and she wanted to cancel the session. However, luckily, Ali spoke with her mother earlier that day, who said something along the lines of “it’s not going to kill you, it will make you stronger." I also gave her my personal pep talk that every time she walks into a writing session, the song could change your life. Ali made the drive to Long Beach to attend the writing session, and she used her mother's words to help write this great song. Originally, the song title was "What Doesn't Kill You"; it was later changed to "Stronger (What Doesn't Kill You)".
When the song was first written, Ali, Jorgen & David decided it wasn't quite right for Leona Lewis. Then Ali's manager, Tom Maffei, was first to pitch the demo to Jeff Aldrich (then A&R exec for Kelly Clarkson at RCA Records). Jeff loved the song and played it for Kelly Clarkson and her manager, Narvel Blackstock, who both loved the song. Jeff then hired Greg Kurstin to produce, and he contributed additional writing to the song.
Kelly recorded the song and it was the second single released from her album, Stronger. The song went to #1 on the Hot 100 for three weeks, plus #1 on the AC chart. It was nominated for four Grammy awards—it was great to see the writers get nominated for Song of the Year. It was also BMI Song of the Year in Europe.
But Stronger was pretty much a flop (lyrically) before Kelly changed most of the song (and selflessly didn't even add her name in the credits).. so it may not have been a hit without Kelly's changes and vocals on the song.
Oh my gosh, why are so many people writing hit songs for Leona? Furthermore, why can't Leona know a hit when she hears it? Like girl, she is all types of CURSED. I feel for her.
Her team rejected We Found Love, Burn, Halo, Stronger, Blank Page, Impossible and possibly more hit songs and released Lovebirds. What kind of sabotage?
what are the others? I already forgot there are so many of them
@Kurstin giving it to Kelly tho
We found love, Burn, Stronger,... is there any other hit I'm missing? 
