Demi Lovato Gives ‘Confidence’ Boost to Hillary Clinton

The 23-year-old pop star joined the candidate on the campaign trail in Iowa.

But tonight there was little talk of poll numbers among the 1,700 people -- predominately students -- who braced the cold to catch the show.

"I don’t think there is a woman more confident than Hillary Clinton,” Lovato told the cheering crowd inside an auditorium at the University of Iowa. "I am voting for her because of her beliefs, her strength and the fact that she completely embodies the concept of women empowerment.”

Lovato follows a string of youth-friendly celebrities to endorse the Democratic presidential candidate.

Whether the strategy will pay off at the polls is still to be seen.

Many of those in attendance tonight said they were still undecided about who they would caucus for in 11 days, but that Lovato’s endorsement of Clinton wouldn’t sway them either way.

"I don’t think any celebrity would really influence my choice for president that much,” 23-year-old Grace Junkins told ABC News as she waited in line for the event.

Her friend, Jamie Pritzker, 20, who says she's between Sanders and Clinton, also dismissed Lovato as having any impact on her vote, but did admit the singer’s appearance was a factor in why she attended the event.

“I’m here for Demi,” Martin said. “That’s about it.”