On Monday morning (Oct. 3), tickets go on sale for a Sam & Audrey concert at Nashville's Ryman Auditorium on Tuesday night.

You may be saying to yourself, "I don't know any singers named Sam and Audrey."

But think about it.

Samuel Timothy McGraw and Audrey Faith Perry will be celebrating their 20th wedding anniversary next week, so could they be the ones playing the show?

The two originally got to know one another when Faith Hill was opening for McGraw during his 1996 Spontaneous Combustion tour. The sparks flew on stage and off, and they were married on October 6, 1996. Now 20 years and three kids later, maybe they just miss playing shows together.

McGraw and Hill toured together again on the Soul2Soul 2000 tour for five months, starting in Atlanta and ending in Orlando. They reprised that tour in 2006 and 2007 for the Soul2Soul II tour, which made more than 100 stops all over America and Canada. In 2012, they toured together again for a string of dates in Australia. And later that same year, they launched a series of Soul2Soul concerts at the Venetian Hotel and Casino in Las Vegas.

But since that Vegas run, McGraw's been on the road without Hill.

From the looks of both of their websites, they are both free on Tuesday night.