Looks like we are in for a Spears wedding after all - but not the Britney Spears wedding we were expecting, no.

Instagram

Brit's little sister, Jamie Lynn, has announced her engagement to Jamie Watson via Instagram this weekend.

"Guesssss what????" Spears wrote, sharing a picture of herself and her fiancé embracing, her left hand raised to show off her new ring. "#Hedidgood."

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The engagement ring itself is quite a stunner: a silver or platinum setting with a round solitaire diamond set upon a band of pave gems.

The happy couple have been dating on and off for three years. This is Jamie's second engagement - she was previously set to wed Casey Aldridge, the father of her 4-year-old-daughter Maddie. They split nine months after their daughter's birth.

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The 21-year-old actress took a break from acting when she became pregnant, but has now moved to Nashville, Tennessee to force a new career in the music business.

Jamie's happy news will no doubt be a difficult topic for older sister and pop princess Britney, who recently broke off her wedding plans with Jason Trawick when their engagement ended in January this year.

Congratulations to Jamie and Jamie, though!

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