Although it's not common occasionally an artist is able to take the work of another and improve it. It takes something special for an artist to surpass the work of the original, they need to connect with the song on a deep personal level. Here is a list of some cover songs better than the original.
1. The Other Woman - Lana Del Rey
Originated by jazz singer Nina Simone, this song about the loneliness of being the other woman in a relationship. Del Rey managed to take the song and make it her own.
2. Holding Out for a Hero - Fairy Godmother
YAS QUEEN! Originated by 80s singer Bonnie Tyler, it's pretty sad when an animated character is able to take your song and make it better. This cover is seminal for everyone who loved Shrek 2 during their childhoods.
3. It's Oh So Quiet - Bjork
Bjork was able to take this song, which was originated by Betty Hutton, and make it one of the classic songs in her discography. The music video was strange with Bjork walking through a town screaming out whispering out the song. As she walked through the town the townspeople began dancing with her until the final shot of her shushing the viewer as she lifted up into the atmosphere.
4. Valerie - Amy Winehouse
Who even cares who originally sang Valerie, Amy made this her song.
5. I Will Always Love You - Whitney Houston
This song was originated by Dolly Parton but was made ICONIC by Whitney in her movie "The Bodyguard". Dolly also originated a song in a movie from the 1970s but Whitney's version is the version that shines.