Jason "Mayhem" Miller hasn't fought for the UFC since losing a welterweight bout to current champ Georges St. Pierre in 2005 at UFC 52. Since then he's put together a 10-3 (1 NC) record with wins over Tim Kennedy, Robbie Lawler, Falaniko Vitale, and Kazushi Sakuraba. His only losses in that span were to Jake Shields, Frank Trigg and Strikeforce middleweight champ Ronaldo "Jacare" Souza.
He's also hosted three seasons of Bully Beatdown on MTV.
Today we get news from MMA Fighting that he's re-signed with the UFC. According to that report his Strikeforce contract had expired.
Mayhem becomes the first Strikeforce fighter to make the jump to the UFC since Zuffa, the UFC's parent company, acquired the promotion. He'd fought for Strikeforce since 2009, going 1-1 and also picking up a win in Dream during that time.
He had been expected to fight both Nick Diaz and Tim Kennedy for Strikeforce in recent months but those fights never happened for reasons unknown.