Celine Dion is responsible for the world's worst cover version, a poll of music experts has decided.
The Canadian star's rendition of the AC/DC track You Shook Me All Night Long was given the dubious honour in the Total Guitar magazine survey.
Editor Stephen Lawson said Dion's cover was "sacrilege".
The experts also judged the best cover versions, with Jimi Hendrix's performance of the Bob Dylan song All Along the Watchtower top of the list.
"Cover versions have never been bigger," said Mr Lawson.
"Producer Mark Ronson became a household name on the back of his quirky covers album, with Amy Winehouse's version of Valerie outselling The Zutons' original."
Dion, 40, who performed You Shook Me All Night Long at a Las Vegas concert six years ago, never released the track as a single.
A Sugababes and Girls Aloud version of Walk This Way, a huge hit for Aerosmith and Run DMC, came second in the list of worst covers.
Westlife's 1999 version of the ballad More Than Words by rock band Extreme was third in the list.
Will Young was fourth with his cover of The Doors' Light My Fire, which reached number one in the UK top 40 charts in 2002, and The Mike Flowers Pops rounded off the top five with their cover of Oasis' Wonderwall.
In the list of best covers, The Beatles' rendition of Twist and Shout, first recorded by the Top Notes, was in second place, followed by the Guns N' Roses version of the Wings song Live and Let Die.Nirvana's cover of The Man Who Sold the World by David Bowie, and Muse's Feeling Good, made famous by Nina Simone, also appeared in the top five.