(USA TODAY) -- Apparently, love couldn't keep them together.

People is reporting that Toni Tennille and Daryl Dragon, better known to millions as the 1970s singing group The Captain & Tennille, are divorcing after 39 years of marriage.

A statement on CaptainandTennille.netappears to confirm that a split is in the offing:

"Until Thursday, January 16th, 2014, when Toni Tennile met with a DIVORCE ATTORNEY, in Phoenix, AZ, everything relating to THE CAPTAIN & TENNILLE appeared to the public as them being the ideal model for a 'rock-solid' married pair. But almost all people naturally evolve over time, & sometimes hidden feelings start to be uncovered when one may read, just a little more into (the popularized, substitute heading appearing just below), stating, for instance: 'MUSIC HAS KEPT THEM TOGETHER.'"

TMZ spoke by phone with Dragon, 71, who seemed blindsided by the break-up. "I don't know why she filed. I gotta figure it out for myself first."

Dragon and Tennille met in the early 1970s and married in 1974. Their first big hit, the Neil Sedaka-penned Love Will Keep Us Together, stayed at No. 1 on the Billboard charts for nine weeks in 1975. Among their other big hits were Do That to Me One More Time and Muskrat Love. They also had a variety show on ABC that ran from 1976 to 1977.