Britney Spears' Mother Lynne Shares a Rare Photo with Her Granddaughter Ivey

Britney Spears' mom, Lynne Spears, is enjoying every moment of her grandmotherhood as she shares a rare photo with her granddaughter to mark an important milestone.

Britney Spears' mother, American author Lynne Spears, took to Instagram to show off her granddaughter in a rare photo of them posing together.

The Instagram shot gave a nod to two important celebrations the family marked this week. The first was Lynne's 66th birthday, which took place on Tuesday, and the Cinco de Mayo commemorated on Wednesday.

The picture showed singer Britney's mom squatting in a field beside Ivey, who stood with an excited smile playing on her lips. The duo rocked tiny sombreros and colorful, toy-like glasses sporting sombrero designs.

While Ivey donned a stylish tulle gown and a pair of camo crocs, Lynne looked casual in a horizontal-striped tank top and black pants. She captioned:

"Thank all of you for such sweet Happy Birthday wishes! Today and every year, Cinco de Mayo gives me one extra day for me to celebrate!"

Fans offered warm reactions to the post, sharing heartfelt birthday wishes to the author while commending the beautiful family photo.

Aside from Ivey, who is the youngest daughter of Jamie Lynn Spears, Lynne's youngest child, the author has a handful of grandkids from her two other children, including singer Britney, and film producer, Bryan Spears.

Her mom sent her the clip earlier as a reminder of how good she was at singing.

Bryan shares a daughter, Sophia, with his wife, Graciella Sanchez, while Britney has two sons with her ex-husband, Kevin Federline, whom she divorced in 2006.

Notably, Kevin has 70% custody of their two children, Sean and Jayden Federline, while Britney has only 30 percent unsupervised custody.

This legal arrangement resulted from a series of dramas that played out following their divorce, including the star's highly-publicized arrest in 2008.

Aside from custody battles, Britney has also encountered legal dramas with her father, Jamie Spears, who was her conservator. Their conservatorship battles have prevailed for over a decade, even though the "Toxic" crooner had long quit singing.

Lynne's photo with little Ivey comes weeks after Britney, 39, revealed that her mom wanted her to explore her vocal abilities again. Taking to Instagram, she shared a throwback video of herself singing on-stage as a teenager.

She explained her mom sent her the clip earlier as a reminder of how good she was at singing. Britney also disclosed that her mom wanted her to sing again.

Fans agreed with Lynne, taking to the comment section to urge the iconic songstress to grace the world with her singing prowess once again.