Justin Timberlake and Jessica Biel are one of the cutest celeb couples out there. From their working relationship to sartorial support, they always have each other’s backs — and seem to have a ton of fun doing so. On Thursday, they celebrated their fifth wedding anniversary, and as you can see from the Instagram posts they dedicated to each other, they just keep getting cuter as the years go by.

Timberlake started with a #tbt of himself singing in the studio to let fans know that he’s back in action and recording music — but that’s not the only reason he posted the video. “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,” he wrote. “This song was our first dance.”

In a series of clips, he croons Leon Russell’s “A Song for You,” and yeah, we’re crying, so what? Biel reposted the videos to her own Instagram account, writing, “My tender heart is yours, now until forever.”

Timberlake didn’t stop there, though. “To my beautiful @jessicabiel: You have taught me so much about what a true love means,” he wrote alongside the post. “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…’ #Happy5thAnniversaryWifey#ASongForYou.” He ended the slideshow with a photo of the two of them sharing a kiss.

Biel posted her own video in tribute to her husband, showing the two of them goofing off with Snapchat filters in the backseat of a car. “How lucky am I?” she wrote. “Even if he’s initially skeptical, he always gets extra for me.” She panned over to show Timberlake grimacing, then giving us some of those sassy comedic chops he’s become known for. Rock that flower crown, JT.

Biel and Timberlake share two-year-old son Silas Randall together. As for what keeps their marriage so happy? “We have similar values; we believe in loyalty, honesty,” Biel recently said, admitting that, between them, it’s the simple things that matter. “We like to have fun.”

Do you love JT and JB as a couple? Let us know @BritandCo!

(Photo via Frazer Harrison/Getty)