Jessica Simpson’s dad Joe is gay?!

According to a bombshell new report, Jessica Simpson’s world was turned upside-down when her manager-dad Joe Simpson re­cently dropped a bomb on his unsuspecting family: An insider says he confessed he’s gay! 

And not only has a family source told The National Enquirer that 54-year-old Joe came out of the closet, the source says the former youth pastor and Baptist minister has a 20-some­thing boy toy!

The stunning confession was the real reason wife Tina filed for divorce from Joe, her husband of 34 years, in late September, the Enquirer reports.

“Joe got the family together about two months ago and came out of the closet,” an insider divulged. “He told them that he’d tried to continue in his marriage to Tina, but he couldn’t go on any longer and deny the fact that he had these feelings for men.

“Joe said it wasn’t fair to her, and it wasn’t fair to him.”

Tina, 52, filed for divorce in McLennan County, Texas, on Sept. 24. In the paperwork, she cites “discord or conflict of personalities” as grounds for the marital dissolution.

Meanwhile, Joe has been spiraling out of control for some time. He was busted for drunk driving in Sher­man Oaks, Calif., on August 4.

“The police report stated that there was someone else in the car with Joe,” said a source close to the Simpson family. “Some reports have stated it was Tina, but now the belief is that it may well have been a boyfriend.”