If Hillary Clinton doesn't win the election on Tuesday, the fault won't be in her stars.

Hoping some celebrity glamour will boost her campaign, the Democratic nominee enlisted power couple Beyonce and Jay Z to headline a concert in support of her bid for the White House.

"Look how far we've come from having no voice to being on the brink of history - again," said Beyoncé, who noted that less than a century ago, women did not have the right to vote. "But we have to vote."

The singer says she was thrilled that her young nephew was able to witness Barack Obama's 2008 election as the nation's first black president.

Now she wants her daughter "to grow up seeing a woman lead this country and know her possibilities are limitless," Beyoncé said. "That's why I'm with her."

After raucous performances from Beyoncé and her husband, Mrs Clinton had one simple message for the packed, cheering crowd at Cleveland's Wolstein Centre: "Help us win Ohio."

Mrs Clinton's campaign is turning to a series of free concerts to appeal to young and minority voters not necessarily motivated to vote for her.

A series of hip-hop stars were part of the show, including Big Sean, J. Cole and Chance the Rapper, who encouraged the crowd to vote for Mrs Clinton - at the very least just to prevent Donald Trump from winning the White House.

"His conversation is divisive," said Jay Z. "He cannot be our president".