By Amber Goodhand - Radar News Editor
The lovebirds were spotted in West Hollywood on Monday holding hands, publicly proclaiming their relationship -- with Kat Von D in a slinky red dress and Deadmau5 more casual in a t-shirt and cap.
Canadian performer Deadmau5, real name Joel Zimmerman, posted a barrage of photos on Facebook of his new lady love on Sunday titled "a day with kats," and then took to his Twitter account to profess his love.
"Yeah, im in love. inb4 I find a f**k to give over the Internet implodes over it ;)" he wrote.
"at least I'm happy! Lol"
Do you think Deadmau5 is an upgrade from Kat's cheating ex, Jesse James? Leave your comments below...