John Cena appeared on TBS' Conan last night to promote FOX's American Grit and talk about his WrestleMania 32 appearance, as seen above.

Cena commented on coming to the rescue for The Rock at WrestleMania and said fans usually don't like him but agreed they "lost their minds" and said it was nice. Cena goes on and teaches fans to sing "John Cena sucks" to the tune of his theme song.

Cena also commented on his WWE status and said he didn't like doctors telling him he would be out of action for nine months so he upped the physical therapy just so he could do something in the ring at WrestleMania. He commented on finishing rehab in three months instead of nine but didn't say whether or not when he will be back full time.

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