Tv actor Glenn Howerton has announced the birth of his second son.

The It's Always Sunny in Philadelphia star and his wife Jill Latiano welcomed Isley Ray in secret in August (14) and confirmed the news at a red carpet event on Thursday (13Nov14).

Howerton tells, "We're announcing our baby tonight," while Latiano adds, "We just had another baby three months ago and no one knows about it."

The actor goes on to explain, "With the first one, it's not like we announced (the birth) but it came out somehow. This guy came out under the radar. I think because around the time we were having the first one, we went to a bunch of events and she was super pregnant so (this time) it kind of happened without anyone knowing. As a matter of fact, because he was a home birth.... he actually doesn't even have a birth certificate so technically he doesn't even exist!"

Howerton and Latiano married in 2009. Their first son Miles was born in 2011.