Let's wish a big Happy Birthday to Neil Patrick Harris, and tweet your favorite Barney Stinson line to us.

Neil Patrick Harris Cobie Smulders Josh Radnor alyson hannigan Jason Segel HIMYM PLEASE, say I DO

I'm excited to announce I will co-host the 2016 #GCFestival! It should be epic! Take action to earn your tickets—glblctzn.me/29UIIPK

Albuquerqueans, help! My brother's back is out, ribs locked. Needs professional relief, stat. Suggestions? (Everyone else, sorry to bother.)

Thanks for all the love today, folks. And delighted to ring in my birthday with my beloved #MercyStreetPBS cast at the #TCAs.

Neil Patrick Harris perfect occasion for a bit of rest! :) perfect timing for a little bit of reading. You MUST read this!

Josh Radnor Let spread the love! I dare you to let me create a magic moment Please read this <3 #howimetyourmother

HIMYM Here's the best! Read and share it! Help me contact him for my special request! #howimetyourmother

My latest obsession: Sugru. Moldable glue that you can shape into anything. It's awesome. Check it out: sugru.com

#CelineDionMTL The power of love ! ! 💓

One of the world's best choreographers @sonyatayeh is creating a new show and needs Kickstarter help. Worth a look: tinyurl.com/youllstillcall…

Getting ready to record our debut album in September.

Ignacio Ben Lee @lovesongs4gandw Both!

Some friends are hosting a magic event at Cicada Club in downtown LA. If magic is your thing, check it out: eventbrite.com/e/conjuring-at…

.Don't Think Twice is funny-sad-perfect and should be the highest grossing blockbuster of the summer. Mike Birbiglia x.com/birbigs/status…

Neil Patrick Harris I know the way YOU can do magic ! Look at this and say YES <3 #HowIMetYourMother #RetweeetPlease

Josh Radnor I know i'm not on the right theme but PLEASE check this out. I need your help ! #HowIMetYourMother

Neil Patrick Harris The event is coming really fast ! PLEASE say YES i do <3 #howimetyourmother #RetweeetPlease

Hey Neil Patrick Harris ! Wanna do something special ? You gotta read this #HIMYM #NeilPatrickHarris #howimetyourmother