For one thing guys, it's called a chorus.
And for another, as a Cena fan, I enjoyed the little rock song. He wasn't paying guitar like Joe Satriani but I don't think that was the point of it. The point was to crack fun at Cena which he succeeded at. The fans dug it, and they were cheering him on, and through that, he made Cena even more the underdog, which benefits us Cenation members because now, victory will be even sweeter. If you didn't enjoy the song, look at the silver lining that now the deck is stacked even more against us, and now we're going to enjoy triumph more and more.
Also though, "We Will Rock You" was awful. That crap just straight up sucked.