Report: Bret Michaels & Miley Cyrus' mom had an affair

Bret Michaels caused a bit a controversy earlier this year after recording a song with Miley Cyrus titled Nothin' To Lose, of which he says to the female singer that he wishes take her clothes off (in the song). Michaels claimed that he wrote the song long ago and when the opportunity rose for him and Cyrus to work together, he took it. He also claimed that Cyrus' mother, Tisch, was on-hand when the song was first presented to her.

The controversy eventually died down, but now it seems that Tisch and Michaels may have been more intimate than business partners should. Tisch's husband of 17 years, Billy Ray Cyrus, filed for divorce last week due to unknown causes.

Read Us Magazine's article, below, on Michaels and Cyrus' peculiar relationship:

The reason Miley Cyrus' parents are splitting after 17 years of marriage: Mom Tish had an affair with rocker Bret Michaels, reports the new Us Weekly (on newsstands Wednesday).

When Billy Ray learned of it - as well as at least one other fling - he filed for divorce Oct. 27, sources tell Us Weekly.

Michaels, 47, "became close to the entire family" this past February when he and Miley released the racy duet "Nothing to Lose," an insider tells Us Weekly.

He and Tish, 43, soon began carrying on an on-the-sly romance, sources tell Us Weekly.

Tish was seen at Michaels' Feb. 28 show at the Key Club in L.A., and he had once asked her production company’s help to adapt his book, Roses & Thorns, into a movie.

"Billy Ray was completely unaware of what was going on," the source says of the "Achy Breaky Heart" crooner, who is seeking joint custody of their three minor children, Miley (who turns 18 Nov. 23), Braison, 16, and Noah, 10. (They have three older children from previous relationships.)

Though a rep for Michaels refutes the allegations, telling Us Weekly, "There has never been an affair or a fling," and a rep for Tish also denies the dalliance, the Cyrus source insists, "It was a professional relationship that turned into something more."

Photo/Source via Us Magazine