Just try to imagine a world in which “…Baby One More Time” is a TLC song.
Lady Gaga wrote "Telephone" for Britney Spears, but Britney rejected it. Gaga later recorded it with Beyoncé and it was a huge hit.
Whitney Houston's "How Will I Know" was originally intended for Janet Jackson.
Most people assume Justin Timberlake's "Rock Your Body" was just a homage to classic Michael Jackson, but The Neptunes actually wrote the music for Jackson's final album, Invincible.
Giorgio Moroder originally wanted "Call Me" to be a collaboration with Stevie Nicks, but when she was not available, he instead finished the song with Blondie, and it became a No. 1 hit.
