In the summer of 1956, their father brought 11-year-old Prudence and 14-year-old Patience[3] into the Liberty Records studio in Los Angeles.

The duo made a demonstration recording of the song, "Tonight You Belong to Me," which had been a hit for Gene Austin in 1927, and was written by Billy Rose and Lee David.

Liberty signed them and immediately released a recording of the girls singing the song as a commercial single (with the B-side, "A Smile and a Ribbon," a composition with music by Mark McIntyre) and by September the song reached #4 on the Billboard charts[2] and #28 in the UK Singles Chart,[4] and was the biggest selling record put out by Liberty for two years.

[2][8] In 1978, they reunited to appear on a Dick Clark television feature[2] and stated that they both did not want to be performers in the first place and that their success was just an "accident".

They also stated that their father did not want them to be in the spotlight for personal reasons, so he declined all other television and commercial offers, which prevented both of the girls from furthering their professional music careers.