President Obama, Jay-Z and Beyonce
Jay-Z and Beyonce held a fundraiser earlier this year for President Obama at the rap mogul's 40/40 club in New York City. Beyonce also famously sang the Etta James classic "At Last" for the first couple's first dance during the inauguration. (Photo: Twitter)

R&B diva Beyoncé Knowles penned an open letter in support of President Barack Obama on the eve of the presidential election.

In the letter, shared via Tumblr, the singer expressed her admiration for the president, saying, “You are the reason my daughter and nephew will growing up knowing they can be anything.”

Beyoncé and her husband Jay-Z are both outspoken and avid supporters of the president. They co-hosted a $40,000 ticket fundraiser for the president back in September.

The famous couple have also appeared in campaign ads for the president, and Jay-Z made an appearance at a rally in Columbus, Ohio, on Monday afternoon to stump for Obama.