Lady Gaga’s pop-culture-suffused “Telephone” video has garnered millions of views across the Web, birthed a rush of graduate-level study to pick out every movie and music reference and touched off a public backlash when people mistakenly thought the footage had been banned from MTV. Everyone has taken notice, it seems, including the stars of ’70s rock biopic “The Runaways.”

“She’s really hot,” Kristen Stewart told MTV News about Gaga. “She’s got a look.”

Co-star Dakota Fanning concurred: “I am a fan of Lady Gaga because I think she’s a really good singer and a really great entertainer and when you watch her perform, you know it’s going to be a show. I think that’s really cool.”

The women might be Gaga fans, but don’t expect the duo to ever belt out a line from “Poker Face” or “Bad Romance” in public. While they played rock stars onscreen, both confess to being deathly afraid of karaoke.

“I would never karaoke,” Fanning said. “I am so scared. That is the scariest thing. Getting up in front of a room of strangers and singing songs — that is so scary to me.”

“I would never karaoke either,” Stewart echoed. “Every time I’ve even tried to do that, I’ve regretted it two lines in, and I end up talking [the lyrics]. It’s making me embarrassed talking about it.”

But in “Runaways,” Stewart played Joan Jett and Fanning played Cherie Currie — both legendary, boundary-busting musicians. Doesn’t that at least give them enough courage to step up to the mic in real life? Not a chance!

“I was playing somebody else,” Fanning said. “[Karaoke] is like you getting up and doing that.”

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