Pink "Who Knew"

Credit Pink for ripping Kanye West a new one during his infamous MTV Video Music Awards spectacle in 2009. I know, it's hard to believe it's been a decade since a drunken Kanye stole Taylor Swift's moment. Kanye allegedly carried a bottle of Hennessey on the red carpet and that didn't do him any favors a few hours later when Taylor won "Best Female Video". Kanye charged the stage, stole Taylor's moment and the audience gasped. Swift cried, Beyonce cried, Kanye was ejected from the awards show, and eventually the world moved on...but not before a visibly angry Pink got in Kanye's face and shared a few choice words. Later that evening, Pink tweeted out that "Kanye is the biggest piece of shit on earth." Have a great day.

Christina Aguilera "Beautiful"

STORY BEHIND THE SONG:

The song "Beautiful" caused an ugly scene among Christina Aguilera, Pink and the song's writer Linda Perry. Perry originally mulled a solo career of her own and sought to keep "Beautiful" for herself, but later offered it to Pink while producing her Mizzundaztood album. That offer changed when Aguilera stopped by Perry's house one day and sang "Beautiful". Perry immediately fell in love with Christina's demo of the song and decided to let her keep the song--which didn't tickle Pink. Christina also wasn't happy with Perry. She didn't like her original vocals on the demo and wanted to re-record the song, but Perry would not allow it. Perry claimed the roughness of the demo captured the essence of the song's theme: being imperfect and vulnerable and only wanted the original vocals.