Britney Spears

Kelsea Ballerini will team up with Sofia Carson, Demi Lovato and Hailee Steinfeld for a tribute to Britney Spears during the 2017 Radio Disney Music Awards.

Jamie Lynn Spears may not want to be known for being Britney's little sister, but she doesn't mind singing a few lyrics to 'Oops! I Did It Again,' the pop star's biggest hit. The younger sister and country newcomer recently performed a mashup of the pop song with her own country song, proving she has talented chops of her own.

With her debut single 'How Could I Want More,' newcomer Jamie Lynn Spears has emerged onto the country music scene as a promising young singer. Her first Billboard chart appearances are enough to make anyone jealous -- but does that mean she has sibling rivalry with big sister Britney?