Music has seen some amazing collaborations, but not every duet is a success. While stars like Beyoncé and Lady Gaga, or Queen and David Bowie nailed it, others weren’t so lucky. Some, like Madonna and Britney Spears, sounded great on paper but ended up disappointing fans. Here’s a list of the worst duets that will make you wish they never happened.

Who You Love – John Mayer feat. Katy Perry

While dating, musicians John Mayer and Katy Perry teamed up for a song called *Who You Love*. Unfortunately, their attempt at a romantic ballad fell flat, lacking the emotion it was meant to convey, making it a major misstep.