Check out our Bad Boy Records section for more posts about Bad Boy Records.
From Diddy's Twitter:

Still partying!! Just kickin it wit my boy matt from the ARCTIC MONKEYs! I'm the the newest member of the GROUP! I'm signing him to badboy!

Now, there are two main ways to interpret this. One, he's just joking around and showing his support of Matt Helders/the Arctic Monkeys. Two, there is actually something to it. Personally, I'd fall into the first camp, at this time. Yet, there's no real indication that he's joking, so I definitely wanted to mention it.