Ben Harper and Ellen Harper perform at New York's Rockwood Music Hall on April 21, 2014.

Ben Harper and Ellen Harper perform at New York's Rockwood Music Hall on April 21, 2014.

photo by Jessica Letkemann

The son/mother team of Ben & Ellen Harper debut on the Billboard 200 at No. 43 with "Childhood Home," the pair's first collaborative album.

Music runs in the Harper family. In 1958, Ellen's parents, Charles and Dorothy Chase, opened the Folk Music Center in Claremont, Calif. Ellen runs the Center's shop, concert series, folk festival and teaches music classes. Ben now owns the Center.

Released on May 6 -- in time for the Mother's Day holiday -- "Childhood Home" starts with 7,000 sold in the week ending May 11 (Mother's Day), according to Nielsen SoundScan. It also enters at No. 3 on Folk Albums and No. 12 on Top Rock Albums.

Ben Harper & His Mom Perform 'Childhood Home' LP at Tiny NYC Club Concert

Ben and Ellen aren't the first child/parent combo to appear on Billboard's charts with a collaborative single or album. They follow a number of notable family pairings, including Frank and Nancy Sinatra, Ozzy and Kelly Osbourne, Billy Ray and Miley Cyrus, Vicente and Alejandro Fernandez, and Jay Z and Blue Ivy (billed as B.I.C.). 

However, the Harpers stand out from the crowd, as they are a mother/child combo, as opposed to the more frequent father/child pairing.