Earlier this week, it was announced that Beyoncé and Kelly Clarkson had been confirmed to perform at the 57th Presidential Inauguration Ceremony and more artists have now been added.

The two singers will be joined by pop songstress Katy Perry, 'Climax' sensation Usher and 'We Are Young' hitmakers fun.

The event is due to take place later this month, on January 21, at the West Front of the Capitol in Washington and other stars set to make an appearance include John Legend, Stevie Wonder and 'Girl On Fire' beauty, Alicia Keys.

At the beginning of January, Katy Perry told Closer magazine that she hasn't made any resolutions for the new year and instead just plans to improve herself as much as she can:

"I haven't made any resolutions. In fact, my only resolution is not to make any resolutions. I don't like to set a time frame of new beginnings. I just take my life one day at a time and continually try to evolve and become a better version of myself."

Watch Perry receive the Favourite Pop Artist prize at the recent People's Choice Awards below: