Sentence 1: On May 12 , 2012 , Croucier reunited with RATT and performed with the band at the M3 Rock Festival for the first time since 1991 .
Sentence 2: On May 12 , 2012 , Croucier joined RATT again and performed with the band for the first time since 1991 at the M3 Rock Festival .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?