Yeah they mentioned it last night at the Toronto show.
When they came out, thier was balloons on the Mic Stands and on the Cymbals, that had Happy Birthday Lou written on them. They came out and during the first song, Lou popped them all with his hands.
At a quieter point in between songs, some one up front yelled "Happy Birthday Lou" and Lou replied "Fuck You!".
Lou later said something like, I’m 39 years old today. I’m 39 years old and playing in a rock band. we just played 11 shows in a row. Thats a big deal when your a 39 year old man.
When they went off stage at the end, we were all cheering for an encore. Some guy came onstage and said sing "Happy Birthday to Lou" The crowd sang Happy Birthday to Lou then they came out and played 3 more songs to end it off.
They thanked Toronto, and I think they mentioned thanks for the Birthday wishes.
It was an amazing show.