Jamie Lynn Spears Ties the Knot in New Orleans!

Taryn Ryder
Yahoo Celebrity

Britney's little sister is all grown up!

Jamie Lynn Spears wed her same-named man, Jamie Watson, at the Audubon Tea Room in New Orleans Friday, multiple outlets, including Us Weekly, report.

Big sister Britney, 32, served as the former Nickelodeon star's maid of honor for the nuptials, while Jamie Lynn's 5-year old daughter Maddie (from a previous relationship with ex-fiance Casey Aldridge) acted as flower girl. Britney's sons, Jayden James and Sean Preston, walked together as ringbearers, according to E! Online.

The 150-200 guests present for the nuptials were reportedly given beer cozies that said "Jamie Lynn & Jamie March 14, 2014" as wedding favors, adds People.

Though the newlyweds filed for a marriage license on March 5 in Louisiana, Jamie Lynn hinted back in January that her nuptials would take place soon. She posted a photo on Instagram, declaring she found the "perfect dress" — a Liancarlo gown — at I Do Bridal Couture in Baton Rouge, Louisiana.

[Related: Stars Who Have Tied the Knot in 2014]

Watson popped the question to Spears in March 2013 after three years of dating.

Jamie Lynn, 22, took to Twitter after Watson, who owns a high-end electronic communications service near Spears's Kentwood, Louisiana, hometown, proposed to share photos of her gorgeous round-cut diamond ring.

"Guesssss what??????" she Tweeted via Instagram at the time, adding, "☺ #hedidgood."

The world was tipped off to the younger Spears's wedding plans when she posted a photo on September 16 of what appeared to be a pre-wedding bridal party event (both Britney and their mother, Lynne Spears, were in attendance) in San Francisco to Instagram, writing, "Thanks to everyone for making this such a great weekend!"

The two Jamies' wedding weekend in New Orleans was just as fabulous. They kicked things off on Thursday, when the happy couple dined with Britney and boyfriend David Lucado; Britney's sons, 8-year-old Sean and 7-year-old Jayden; Jamie Lynn's parents Lynn and Jamie; and the bride's brother Bryan at fancy French Quarter restaurant Antoine's, according to Us Weekly. The magazine reported that the party arrived in swanky attire, escorted by limos and accompanied by security.

"Britney seemed very happy with her boyfriend and was holding his hand and kissing him," a source told Us. "Jamie Lynn and Jamie were very mellow and spent most of the evening chatting with friends."

Can't help but wonder... will Britney be next?