We were so upset when we heard that 5 Seconds of Summer would not be joining One Direction on their On the Road Again tour, but the guys will be reunited again in Japan!

CLICK HERE TO SEE WHY 1D AND 5SOS ARE EACH OTHERS BIGGEST FANGIRLS!

The band announced the news on Twitter, saying that they'd be performing alongside 1D on their tour dates in Osaka and Tokyo.

Calum Hood recently tweeted about how excited he was to go to Japan, and now we know why!

It feels like it's been too long since these two bands have hung out — and we can't wait to see them get together again. Prepare for all the feels!

Are you excited about this news? Do you think it's been too long since they've hung out? Tell us in the comments!