Battle of the DJs.

Paris Hilton and Deadmau5 got into a heated social media feud on Friday after he posted a rant on his Tumblr page, slamming the heiress for her (lack of) spinning skills.

“So Paris makes a billion dollars playing a CD at a club. thats great.  how is this news again?  Personally, i would pay about as much to see her ‘perform’ as [race car driving] fans would pay to watch me struggle to get out of first gear and 20 feet off the starting grid  in an Indy500 race without ending up in a wreck,” he wrote.

Paris Hilton and Deadmau5 at the 54th Annual Grammy Awards in 2012.Christopher Polk/WireImage

Hilton is raking in the big bucks as a DJ. She recently made $2.7 million for four nights spinning in Ibiza, Paper magazine reported.

“I am working a lot as a DJ and getting paid very well and having a ball,” she told the Post’s Richard Johnson.

Deadmau5’s blog continued with his race car metaphor: “So, dont you think it would be a tad insulting to the professionals and fans of the driving world if i just showed up one day… dated a driver [referring to Hilton’s ex DJ Afrojack], then hopped on the circuit the following week ‘just coz i can’?  god… even i know my f–kin limits… s–t.”

He concluded: “So paris, thank you… were actually not even mad youre enthusiatic about electronic music… we love that youre a part of our party. But please, get the f–k back in your go kart. No need to prove that you found someone stupid enough to consider paying you a million dollars for something the world knows you arent… because here’s  what you actually are to everyone who knows better.. ticket sales. nothing more.”

Hilton, 33, tweeted a “sorry-I’m-not-sorry” response. A plethora of retweets supporting her career followed.

Deadmau5, 33, retorted, “If I wanted attention, I’d put out a sex tape, f–k a dentist, then charge a million for root canals. For now, imma just be me.”

Hilton doesn’t appear too concerned with the EDM producer, considering a few hours later she announced signing a “huge residency deal.”