Eminem is apparently preparing for shows with spa breaks.
The rapper is more known for spitting controversial lyrics than providing soothing background music.
But with two big gigs coming up at Wembley Stadium in the UK, the 41-year-old has reportedly decided to take some downtime at Coworth Park Hotel.
"Eminem is having all sorts of treatments; he's really getting into it. He now sees it as perfect preparation for big shows as he completely relaxes," a source told British newspaper The Sun.
"He's a perfectionist and wants to be in the best shape physically and mentally for the gig."
The musician will play his first show tomorrow, Friday July 11, with a second date the day after added due to high demand.
Eminem hasn't played in London since 2001, when he belted out raps such as Just Don't Give A F**k and Sh*t On You to fans.
Now the father-of-one seems to have calmed down his bad-boy ways, even if his lyrics do still contain plenty of expletives.
In fact, he wasn't allowed to perform in London's Hyde Park recently due to the nature of his tracks.
"This artist flagged risks across the board. In particular in respect of our public reputation," Royal Parks CEO Linda Lennon said in an email obtained by The Mirror.
"The nature of any act with potential for lyrics to be deemed offensive and/or unsuitable language being audible within the park as a whole, let alone the surrounding residential areas, is unacceptable."