The Carter sisters are doing it for themselves… with the help of Mama Beyonce.
Sibling rivalry often makes for great pop dynasties.MichaelandJanet.BeyonceandSolange.
A record previously held by Blue herself.

Rumi Carter and Blue Ivy Carter.Kevin Mazur/Getty; Kevin Winter/Getty
76 on the Hot 100 when Blue was just 7 years old.
The overachiever was also credited with contributing lyrics and vocals to the track.
Kevin Mazur/Getty; Kevin Winter/Getty
“Protector” debuted this week at No.
(“It’s Hard to Be a Baby”) peaked at No.
But the Sisters Carter better watch their backs, ‘cause Hazel Monet is coming for them.