Everyone's favorite rambunctious idols celebrated their 4th birthday!

Block B celebrated their 4th anniversary today, and the official Twitter account tweeted an old photo of the members curled up behind a sleeping Taeil with the message, "Today is Block B's 4th anniversary since debut ? Thanks to fans who love and compliment us so much, we think Block B has become a group that's become great people that's loved by many people. BBC who always support and love us, we sincerely love you and thank you."

SEE ALSO: SHINee's Onew spotted looking healthy and happy at airport

Happy anniversary Block B!