Britney Spears's younger sister is taking another shot at show business.

Jamie Lynn Spears, who formerly starred in "Zoey 101," debuted the music video of her single 'How Could I Want More'. The country track, which is part of her upcoming album, is reportedly inspired by her relationship with Jamie Watson. It hits the airwaves just a week before Britney's own album is set for release.

However, there seems to be no sibling rivalry here as Britney took to Twitter to show her love and support for her sister. "Can't believe how beautiful my sister looks in her #HowCouldIWantMore video. OMG! Watch on @OnAirWithRyan," the 'Toxic' singer tweeted her 34 million followers.

Jamie Lyn in turn thanked her sister for the affirmation tweeting "@britneyspears thanks for the support B!! I love you! #spearssisters #howcouldiwantmore."

The former Nickelodeon star's take on her video was a far cry from her sister's, which is usually comprised of high-concept and complex clips. Jamie Lynn's, on the other hand, was nothing but simple. She was featured inside a recording studio with only a guitarist in  the background. She was wearing a simple shirt covered with a black blazer and matching black pants.

When she gave birth to her daughter Maddie, now five, Jamie Lynn left her tween show. She then decided to jumpstart her music career by moving part-time to Nashville.

In her past interview with MTV, Britney Spears's sister likened the release of her album to having a second baby.

"I think that now it's like real. It's like being like 'Oh my gosh! I'm going to have a baby.' It's seeing it all here and it's real," she said. "It's like, 'Oh my goodness, I'm really gonna do this.' And it is; it is. It's like my second baby."

Soon enough, the blonde sisters' collaboration for Britney's "Britney Jean" album will be heard. They have performed a duet for the song 'Chillin' With You.'