"The Monster" is a song by American hip hop recording artist Eminem, featuring guest vocals from Barbadian singer Rihanna, taken from Eminem's eighth studio album The Marshall Mathers LP 2. The song was written by Marshall Mathers, Jon Bellion and Bebe Rexha, with production handled by Frequency. "The Monster" marks the fourth collaboration between Eminem and Rihanna, following "Love the Way You Lie" and its sequel (2010), and "Numb" (2012). "The Monster" was released on October 29, 2013, as the fourth single from the album. The song's lyrics present Rihanna coming to grips with her inner demons, while Eminem ponders the negative effects of his fame.
"The Monster" has successfully charted worldwide, debuting on the US Billboard Hot 100 at number 3 (moving up to number 2 the week of the album's release), and has topped the charts in Australia, Canada, France, Ireland, New Zealand, Switzerland and the United Kingdom, whilst also becoming Eminem's first US Hot R&B/Hip-Hop Songs chart number one. Furthermore, it has made top five appearances in Germany and Switzerland.