A televangelist admitted in front of a television audience that he cheated on his wife, an announcement he made to thwart people he said were trying to extort millions of dollars from him.

The Rev. Marcus Lamb made the confession Tuesday night on his show "Celebration" with his wife Joni Lamb by his side.

The couple also displayed a special message about the incident on the website of Daystar Television Network, the couple's television network.

"At the top of the program, the Lambs shared a compelling, transparent account of a personal challenge in their marriage that occurred several years ago, involving an inappropriate relationship between Marcus and another woman," the message said.

The couple explained that there were three people who said they would expose the affair if the couple's ministry did not pay them $7.5 million.

Daystar Television Network is based in Texas and airs some of the most popular evangelists in the nation, including T.D. Jakes, Joel Osteen, Creflo Dollar, Kenneth Copeland and Joyce Meyer.