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鈥檚 backs 鈥 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鈥檚 back in action and recording music 鈥 but that鈥檚 not the only reason he posted the video. 鈥淭oday 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,鈥 he wrote. 鈥淭his song was our first dance.鈥

In a series of clips, he croons Leon Russell鈥檚 鈥淎 Song for You,鈥 and yeah, we鈥檙e crying, so what? Biel reposted the videos to her own Instagram account, writing, 鈥淢y tender heart is yours, now until forever.鈥

Timberlake didn鈥檛 stop there, though. 鈥淭o my beautiful @jessicabiel: You have taught me so much about what a true love means,鈥 he wrote alongside the post. 鈥淚 can鈥檛 put into words what these last five years have meant to me, so鈥 鈥楲isten to the melody 鈥檆ause my love is in there hiding鈥︹ #Happy5thAnniversaryWifey#ASongForYou.鈥 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. 鈥淗ow lucky am I?鈥 she wrote. 鈥淓ven if he鈥檚 initially skeptical, he always gets extra for me.鈥 She panned over to show Timberlake grimacing, then giving us some of those sassy comedic chops he鈥檚 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? 鈥淲e have similar values; we believe in loyalty, honesty,鈥 Biel recently said, admitting that, between them, it鈥檚 the simple things that matter. 鈥淲e like to have fun.鈥

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

(Photo via Frazer Harrison/Getty)