Britney Spears proud of little sister's country music debut as sisters set to sing duo

Britney Spears showed how proud she is of her little sister Jamie Lynn Spears on Tuesday when the former TV star released the video of her first single, How Could I Want More?

"Can't believe how beautiful my sister looks in her How Could I Want More Video. OMG!" wrote the pop singer before telling fans to tune into Ryan Seacrest to watch the 22-year-old make her country music debut.

Jamie tweeted back, "Thanks for the support B! I love you."

In her debut video for the track, which is already a hit on iTunes, Jamie sings into a microphone in a country setting complete with soft lights and a piano.

She also took to Instagram to share her excitement with fans. "Surprise!!!!!! On itunes now!!!! Go get it- RIGHT NOW!!!!! This song means a lot to me... Hope it does to ya'll (sic) as well!! Love y'all!!" wrote the pretty blonde.

She sings in dulcet tones with her blonde locks loose and wavy, wearing a t-shirt featuring the words New York above the Big Apple's skyline. A male guitar player strums along in the background.

Jamie recently revealed on Twitter that the tune was touchingly inspired by her 30-year-old fiancé Jamie Watson, who she got engaged to in March after three years together. "My fiance @J_Wiii [Jamie Watson] inspired it!!"

"He has stuck with me thru it all! I mean #howcouldiwantmore???

"Britney fans have a treat in store as the pop princess has also teamed up with her baby sister to record a track for Britney's new album, Britney Jean, which is set for release on 3 December.

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