(Image Credit: Getty Images|AP Photo)

In addition to the political crowd-planning that's part of the pomp and circumstance of a presidential inauguration, three musical stars will join the swearing-in ceremony in a couple weeks.

Beyonce Knowles, Kelly Clarkson and James Taylor will each take part in Obama's second inauguration, the Presidential Inaugural Committee said this morning. Knowles will sing the National Anthem, Clarkson, "My Country, 'Tis of Thee," and Taylor, "America the Beautiful."

The trio supported President Obama in the campaign.

Beyonce urged fans to vote and posted a letter endorsing the president to her website. She also sported earrings with Obama's name on them and hosted an Obama fundraiser with her husband, Jay-Z, in New York City.

Though she tweeted, "I love Ron Paul," and says she's a Republican at heart, Clarkson said she was voting for Obama again this fall because of his difference from Mitt Romney on social issues.

And Taylor stumped for Obama at his concerts and performed more than once for Democratic National Convention fundraisers. He also performed at the convention in September.

Beyonce performed in 2009 at the inauguration concert and one of 10 inaugural balls, singing the Etta James classic "At Last" for the Obamas' first dance as president and first lady.

The Presidential Inaugural Committee said Obama had a hand in deciding which singing stars would take part in the ceremonies this year.

A whole slew of celebrities are planning to attend the Creative Coalition Inaugural Ball, including Kirsten Dunst, Ashley Greene, Matt Bomer, Paula Abdul, Taraji P. Henson, Omar Epps, David Arquette and Creative Coalition president Tim Daly, according to The Washingtonian.

Get more pure politics at ABCNews.com/Politics and a lighter take on the news at OTUSNews.com