Ok everyone, I don't know how to post a picture of Peter's tweet, but check out this link that goes to Peter's Twitter which shows what he wrote!
In case you can't go on the link, he wrote on it:
Lets try #alexslemonade.The @ symbol may be causing it not to trend. Rob did get his new Stoli shirt. Might b saving it for the premiere.lol
We can only hope! Let's keep our eyes open!