The "Toy Story 4" star also put fellow "Late Late Show" guest Gillian Anderson on the spot with some bad guitar playing to accompany her bad singing.
Tom Hanks and Gillian Anderson decided to face their fears in front of a live studio audience, which somehow also led to Hanks revealing the terrifying he movie he saw much too young and the "Batman-y" voice he wanted to use for Woody in the "Toy Story" films.
For Anderson, hers was a fear she'd already faced in public thanks to her run on London's West End production of "All About Eve." Nevertheless, Hanks put her on the spot when he whipped out a guitar during "The Late Late Show" on Monday night.
While she's no stranger to spooky monsters and alien abductions, having grown comfortable with all kinds of scary things on "The X-Files," Anderson was never tasked with singing. And yet, that's exactly what "Eve" required, and a song written by P.J. Harvey no less.
Anderson said that she was able to go for it so long as it was understood that she would sing it badly, though she confessed that she actually settled into the song about halfway through the production run and started doing at least okay.
Well, when James Corden asked Hanks what his fear was, he admitted that he was terrified when he was asked to accompany his wife Rita Wilson on guitar. "I'm a horrible guitar player," he explained. "I've only been able to stumble my way through a few Beatles standards."
He went on to quip that he knew the same five-and-a-half chords Corden's band knows. He then reached behind Anderson -- and she clearly was a little worried where this was going -- only to come out with a guitar.
"You're gonna have to sing," he told her, breaking into The Beatles' "I Want to Hold Your Hand." And as promised, he botched it up right away. Anderson avoided singing for quite awhile, but she finally relented and went for it when Hanks and -- by this point -- everyone reached the chorus.
Elsewhere in the show, Corden spent a few moments with Hanks talking about how he found the voice of Woody all those years ago before the first "Toy Story" came out in 1991, which really amounted to Corden wanting to know if Hanks had explored other voices before settling on the classic one everyone knows and loves.
"I did kind of pitch more the voice that I'd like to have as a human being, but I do not," he said. "I wanted to get down there in that kind of scary villain Batman-y kind of thing, but it just didn't work."
He then proved just how bad it was by showcasing the voice, but honestly he's got a decent Batman in him. And he knows a thing or two about fear, as evidenced by the first film he remembers seeing.
His parents dropped him off to see "101 Dalmatians," only they didn't know it had left the theater already. So what did a five-year-old Hanks see with his siblings? "Shriek of Fear," which he claims has traumatized him to this day. Check out that harrowing, hilarious story and his Batman voice in the clip below: