5SOS Luke Hemmings’ birthday is upon us. 5 Seconds of Summer singer turns 18 on July 16 and it sounds like his bandmates Michael Clifford and Calum Hood has a lot in store for Luke Hemmings. Except that Ashton Irwin seems to have forgotten… oops. In the honor of his fast-approaching birthday, Luke announced that Jimmy Kimmel block party will happen after 5SOS’ album comes out in the US on July 22. Exciting!

Luke Hemmings got himself in the right headspace to turn 18:

18 soon, no more peein my pants right guys pic.twitter.com/OHRE8qpxiu

— Luke Hemmings (@Luke5SOS) July 15, 2014

Yep, Luke. No more peeing. Even if it’s just for your bandmates who are in close proximity. Michael Clifford will much appreciate the lack of urine when he goes in for the birthday hug.

Michael wrote on his Twitter, “It's my best friends birthday tomorrow and his present will be a hug”.

Luke Hemmings got even more 5 Seconds of Summer love! Calum tweeted, “Can't believe @luke5sos is turning 18 soon! Love this boy!”

But no bromance from Ashton. The 5SOS drummer seems to have forgotten that his bandmate’s birthday is closing in. He didn’t make any birthday remarks on his social media page. Rude. Maybe Ashton Irwin, being the crazy wild one of 5SOS, has a surprise planned for the birthday boy. If we remember correctly, he did say something quite sinister a few days back...

I've been so hungry lately... I nearly even ate Luke today — Ashton Irwin (@Ashton5SOS) July 11, 2014

Not sure what that means, but trust Ashton to come up with something crazy for Luke Hemmings on his 18th birthday! Maybe some legal drinking is in place. Or maybe they will hold off on any celebrations until the Jimmy Kimmel block party! That sounds like the best thing that could happen after the July 22 album release in the US.

Leave a birthday message for Luke in the comments below. Happy Birthday Luke!