Britney Spears celebrated her younger sister Jaime Lynn Spears‘ 30th birthday over the weekend by sharing a throwback picture of them from the early 2000s.

In the photo, Britney is seen laughing while looking at her younger sister who’s awkwardly smiling to the camera. But the most surprising element of the photo is Britney’s then-boyfriend Justin Timberlake being in the image holding his hand over his heart.

“Happy belated birthday to this beautiful soul !!!,” Britney wrote. I love you so much and damn it I wish I was as smart as you at 30 !!!! It’s weird to say that I was basically your momma when you were younger and yes I’m still older but your soul is and always has been wise !!!! I’m truly and genuinely inspired by your path and the life you have created for your beautiful children and I’m so f—ing proud to call someone as beautiful inside as you my sister !!!!”

She continued, “And not only are you a beautiful soul you’re so DAMN STRONG…I was extremely taken back and am to this very day !!! WE play wrestled at home (such classy Southern chicks) and you put me to the floor in literally two seconds after I gave all my might… I’ll never forget it !!! Maybe we should have a rematch… I mean things have changed since 6 years ago !!!!! PS I wish I was as strong as you and happy birthday !!!!”

Timberlake released a statement apologizing to Britney in February following the release of the documentary, Framing Britney Spears, telling the story of her decade-long conservatorship.

“I’ve seen the messages, tags, comments and concerns and I want to respond,” he said at the time. “I am deeply sorry for the time in my life where my actions contributed to the problem, where I spoke out of turn or did not speak up for what was right. I understand that I feel short in these moments and in many others and benefited from a system that condones misogyny and racism.”

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