Calming versions of Jay-Z's biggest hits feature on the upcoming album, 'Lullaby Renditions of Jay-Z.'
It's the latest in the series from Rockabye Baby!, who swap guitars and drums for xylophones and bells.
They've given the same treatment to songs by Led Zeppelin, Madonna, The White Stripes and Kanye West among many others.
From the album, here's a clip of both Jay-Z's Empire State of Mind and Girls, Girls, Girls:
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Lullaby Renditions Of Jay-Z by Rockabye Baby! will be released on July 9th.
The album track set list:
1. Empire State of Mind
2. Hard Knock Life (Ghetto Anthem)
3. Izzo (H.O.V.A.)
4. Big Pimpin'
5. '03 Bonnie & Clyde
6. I Just Wanna Love U (Give it 2 Me)
7. Girls, Girls, Girls
8. Show Me What You Got
9. Can't Knock the Hustle
10. Heart of the City (Ain't No Love)
11. Run This Town
12. Young Forever)