In one of the rare cases of a showbiz couple defying the odds, congratulations go out to the Fifth Dimension's Marilyn McCoo and Billy Davis Jr. who'll celebrate their 49th anniversary today (July 26th). In the couple's autobiography, Up, Up And Away: How We Found Love, Faith And Lasting Marriage In The Entertainment World, McCoo recalled being less than thrilled at seeing Davis at the altar on the big day. She wrote, "I had begged him not to drink before the wedding. I looked into Billy's bloodshot eyes. His buddies had taken him out the night before, and he still showed the effects of the celebration."

In recent years, McCoo and Davis, who have both embraced Christianity, have tried to pass along their knowledge of keeping a marriage alive and healthy by doing marriage counseling work with select couples.

McCoo and Davis were asked if they ever felt smothered by spending so much time together both as a couple and as a headline act: "Billy and I didn't run into the problems of 'I've had enough of you (laughs), I'm sick of looking at your face' kind of thing. It was very easy to do that, where you could talk about your work and the business and the challenges 24-7." ," and briefly starred in their own short-lived TV variety show.

McCoo also starred with Andy Gibb as the co-host of the syndicated music show Solid Gold.

In 2008, McCoo and Davis released their first joint album in 30 years, called The Many Faces Of Love. The collection features the couple tackling some of the greatest love songs of the past four decades, including the Stylistics' "You Make Me Feel Brand New," the Manhattans' "Shining Star," Marvin Gaye's "How Sweet It Is," Percy Sledge's "When A Man Loves A Woman," Joe Cocker's "You Are So Beautiful," Quincy Jones and James Ingram's "Just Once," and others.

In 2014 the couple released their most recent collection, Marilyn McCoo & Billy Davis, Jr. LIVE. Marilyn McCoo & Billy Davis Jr. will next perform on August 31st, September 1st and 2nd at L.A.'s Catalina Jazz Club

AUDIO: BILLY DAVIS JR. ON RELATIONSHIP NOT BASED ON SHOWBIZ
AUDIO: MARILYN MCCOO ON SEPARATING MARRIAGE FROM WORK