Say it with us now: "I am Groot."

Chris Pratt made a special appearance on Jimmy Kimmel Live! Tuesday to debut the trailer for Marvel Studios' Guardians of the Galaxy Vol. 2. The film premieres May 5 in 3D and IMAX 3D.

Posing as an audience member, Pratt talked to host Jimmy Kimmel, who pretended he had never heard of the franchise.

"I play a character called Peter Quill. He's also known as Star-Lord. There's a hot green alien.

We save the universe. There's a raccoon who has a machine gun, talks a lot of smack," he said.

"There's a sentient tree who only knows how to say his own name..."

"Are you on drugs or something?" Kimmel asked.

"No, I'm not. It's a really good movie," Pratt insisted. "I think people are going to like it."

"This is the trailer for—what's it called?" Kimmel asked. "Garble Galaxy?"

"Guardians of the Galaxy Vol. 2," Pratt replied. "Here it is," Kimmel said. "What he said."

The trailer opened with the heroes facing a toothy, tentacled monster. Things somehow managed to get worse when the Guardians met Ayesha, the golden High Priestess and the leader of the Sovereign people.

She wants to "cleanse the universe" of its weaknesses (betrayal, fear and jealousy), and the Guardians won't stand for that.

"So, we're saving the galaxy again? Awesome!" Rocket Raccoon said.

"We're really going to be able to jack up our prices if we're two-time galaxy savers."

The trailer ended with Star-Lord finally coming face-to-face with his father. (Gasp!)

And, of course, there were lots of cute Baby Groot moments.