The 36-year-old musician-actor took to Instagram to wish his better half a happy anniversary.
"#TBT to a late night freestyle session on a break in the studio - YES I've been back in the studio cooking! But, today is even more special for me because five years ago, on this day, I became the luckiest man in the world when I exchanged vows with my best friend. This song was our first dance.
"To my beautiful @jessicabiel: You have taught me so much about what a true love means. I can't put into words what these last five years have meant to me, so... 'Listen to the melody 'cause my love is in there hiding... '" Timberlake wrote alongside a series of his black-and-white pictures.
She shared a comic video of the couple dancing along to the car stereo with a flower-ear filter on.
"How lucky am I? Even if he's initially skeptical, he always gets extra for me," Biel captioned the post.
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