In a recent deal, renowned music producer Bob Rock sold 100% of his rights to Metallica's Black Album and four Michael Buble albums to Hipgnosis, a leading music investment company. The financial details of the transaction were not disclosed.

Bob Rock, a Canadian music producer, has had an impressive career spanning over three decades. He has produced albums for iconic artists such as Metallica, Michael Buble, Aerosmith, and Mick Jagger. The Black Album by Metallica, released in 1991, is considered one of the best-selling heavy metal albums of all time. With sales of over 30 million copies worldwide, it solidified Metallica's place in music history.

Michael Buble's albums that were part of the deal include It's Time, Call Me Irresponsible, Crazy Love, and Christmas. Buble, a Canadian singer, has sold over 75 million records worldwide and is known for his traditional pop and jazz music.

Hipgnosis, founded in 2018 by Merck Mercuriadis and Daniel Marley, has been making headlines with its acquisitions of music catalogs from various artists. The company has acquired the catalogs of artists like Neil Young, Cat Stevens, and most recently, Nick Cave and the Bad Seeds.

Music rights have become an attractive investment in recent years, with companies like Hipgnosis, KKR, and Blackstone Capital Group showing interest. These investments can provide a steady stream of income through royalties.

For more information on music rights and the music industry, check out the following resources:

• What Are Music Rights?
• Who Owns the Right to Music?
• How Do Music Rights Work?
• Music Rights Societies