Michelle Obama speaks in Daytona Beach

First Lady visits Jacksonville, Daytona Beach, Miami

ORLANDO, Fla. - First Lady Michelle Obama spoke to grassroots supporters in Florida on Thursday with stops in Jacksonville, Daytona Beach and Miami.

Michelle Obama asked her 5,500 supporters at the Ocean Center to go to the polls and vote, while telling them to ask friends and family to vote for her husband, President Barack Obama.

Singer Marc Anthony spoke to the crowd before the First Lady, saying he shared Obama's values about hard work and giving everyone a fair shot.

Michelle Obama reminded the crowd of what President Obama has done in his four years with "Obamacare" and the war on terror, but emphasized he has a lot more work ahead of him.

Firefighters and paramedics treated about 50 people for heat exhaustion while waiting for the First Lady to speak. Five were taken to the hospital.

Michelle Obama made a final stop at the James L. Knight Center in Miami. Actress Gabrielle Union warmed up the crowd for First Lady Michelle Obama.

Early voting is underway across the state and the first lady is slated to spend Thursday trying to firm up the President Barack Obama's message about what he believes is at stake for Florida voters going into next week's election.

President Obama cancelled his appearance in Orlando last week as Sandy prepared to make landfall and has since been using surrogates, including former president Bill Clinton, to keep a presence in a state that is expected to play a huge role in whether he wins a second term.

Officials said this week that 2 million Floridians have already voted early.

Copyright 2012 by ClickOrlando.com. The Associated Press contributed to this report. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.