Today, President Barack Obama took a public oath of office and began his second term as President of the United States of America. While the ceremony was by all accounts smaller than the one four years ago, it was still full of tradition, flag-waving, pomp and circumstance. Check out these memorable images from the event.

Former President William Jefferson "Bill" Clinton

Former U.S. President Jimmy Carter and wife Rosalynn Carter

Former House Speaker Newt Gingrich, Callista Gingrich

Supreme Court Justice Sonia Sotomayor (right) and Supreme Court Justice Elena Kagan

Justice Ruth Bader Ginsburg and Justice Clarence Thomas

Jimmy Carter, Hillary Clinton, Bill Clinton

Former U.S. President Jimmy Carter

Defense Secretary Leon Panetta

James Taylor and Kim Taylor

U.S. Sen. John Kerry

Bill and Hillary Clinton embrace President Obama

Al Sharpton

Sen. Al Franken

Congresswoman Nancy Pelosi

Dr. Jill Biden

Supreme Court Chief Justice John Roberts and Supreme Court Justice Sonia Sotomayor

POTUS and FLOTUS K-I-S-S-I-N-G

Malia Obama and Natasha "Sasha" Obama

The First Daughters greet their father

Sasha and Malia and their cousin Avery Robinson

The Obama ladies (and "first grandmother" Marian Robinson, on the left)

The First Family

House Minority Leader Rep. Nancy Pelosi and Vice President Joe Biden

Chicago Mayor Rahm Emmanuel, wife Amy Rule

Valerie Jarrett, senior advisor to the President of the United States

The VPOTUS and the POTUS

Rep. Steny Hoyer

U.S. Sen John McCain and U.S. Sen. Dianne Feinstein

Congressman Paul Ryan

Poet Richard Blanco

Kelly Clarkson greets the President

Katy Perry and John Mayer

Katy Perry and John Mayer

Jay-Z and Beyoncé

Jay-Z and Beyoncé

Jay-Z and Beyoncé

Myrlie Evers-Williams

U.S. Sen. Charles Schumer

Chuck Schumer enjoying the vocal stylings of Beyoncé

Another historic moment

Check out Sasha gazing upon Beyoncé

Beyoncé embracing First Lady Michelle Obama

An airbrushed Obama sweatshirt

Official caption from Getty Images:

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WASHINGTON, DC - JANUARY 21: Gustavo Cinfuentes (L) and Greg Josken hug near the U.S. Capitol building as they stand on the National Mall waiting for the start of the Inauguration ceremony on January 21, 2013 in Washington, DC. U.S. President Barack Obama will be ceremonially sworn in for his second term today. (Photo by Joe Raedle/Getty Images)

Official caption from Getty Images:

WASHINGTON, DC - JANUARY 21: Susannah Ward (L) and Daniela Zara and others gather near the U.S. Capitol building on the National Mall for the Inauguration ceremony on January 21, 2013 in Washington, DC. U.S. President Barack Obama will be ceremonially sworn in for his second term today. (Photo by Joe Raedle/Getty Images)

Official caption from Getty Images:

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WASHINGTON, DC - JANUARY 21: Rickita Glass (L) and Kelly Grimes and others gather near the U.S. Capitol building on the National Mall for the Inauguration ceremony on January 21, 2013 in Washington, DC. U.S. President Barack Obama will be ceremonially sworn in for his second term today. (Photo by Joe Raedle/Getty Images)

Official caption from Getty Images:

WASHINGTON, DC - JANUARY 21: Sydney Yochum sits on the shoulders of Luis Lauro Lopez near the U.S. Capitol building on the National Mall as they and others wait for the start of the Inauguration ceremony on January 21, 2013 in Washington, DC. U.S. President Barack Obama will be ceremonially sworn in for his second term today. (Photo by Joe Raedle/Getty Images)

Official caption from Getty Images:

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WASHINGTON, DC - JANUARY 21: People lie and sit on the ground as they gather near the U.S. Capitol building on the National Mall for the Inauguration ceremony on January 21, 2013 in Washington, DC. U.S. President Barack Obama will be ceremonially sworn in for his second term today. (Photo by Joe Raedle/Getty Images)

Official caption from Getty Images:

WASHINGTON, DC - JANUARY 21: People walk past a homeless man who did not want to be identified on their way to the National Mall to attend the Inauguration ceremony on January 21, 2013 in Washington, DC. U.S. President Barack Obama, will be ceremonially sworn in for his second term today. (Photo by Mario Tama/Getty Images)

Images via Getty.