Captain & Tennille, the 70s singing duo best known for their hit “Love Will Keep Us Together” are going their separate ways.

After 39 years of marriage, Catheryn Antoinette Tennille, 73, filed for divorce from Daryl Dragon, 71, known as the Captain, of the dynamic duo, Captain & Tennille. The Captain aka Daryl Dragon was also a keyboard player for The Beach Boys when he first met his wife, Toni Tennille, who was a co-writer for a musical, at the time. Tennille later toured with The Beach Boys as an additional keyboardist, like her husband, according to TV Guide. The pair released their first album in 1974, and won a Grammy the following year.

TV Guide shares that the couple began performing together at The SmokeHouse restaurant in Burbank, California, where they were discovered by famed performer, Neil Sedaka. The rest is music history. The couple married on November 11, 1974 and their hit single “Love Will Keep Us Together” hit No. 1 on the Billboard chart the next year. Some of their biggest hit were “Do That to Me One More Time,” “The Way I Want to Touch You,” “Shop Around,” and “Muskrat Love.”

The couple even starred in their own ABC variety show called The Captain and Tennille Show, which aired from 1976 to 1977. The pair also performed on other specials for the network, during that time.

In 2006, the couple released their first-ever Christmas CD and recorded two songs for the Cartoon Network special Casper’s Scare School, according to TV Guide.

Tennille filed for divorce in the Prescott, Arizona City courthouse on January 16, People reports.

Daryl told TMZ, “I don’t know why she filed. I gotta figure it out for myself first.” He also shared that they are still living together in the same house. According to the divorce documents obtained by TMZ, there’s no special mention about health insurance, which some believe to be a speculative cause for the divorce. Toni mentioned in 2009 in a blog that Daryl had been diagnosed with Parkinson’s. Some believe that he might be eligible for better coverage, if the couple were divorced. If so, it would be a much nobler cause than the ubiquitous “irreconcilable differences.”

Captain & Tennille have no children together; but their music and their presence in pop culture history will live on, even if love couldn’t keep them together.