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11 January 2013, 15:32 | Updated: 11 January 2013, 15:49
The artists will join the likes of Beyonce and Kelly Clarkson for the event next this month.
Katy Perry and Usher are among the stars who have been added to the performers line-up for US President Barack Obama's Inauguration Ceremony next month.
The 'I Kissed A Girl' singer was a keen supporter of the American leaders re-election campaign last year, performing at various stop offs on the campaign trail.
She will join other newly confirmed acts Alicia Keys, Fun., John Legend, Brad Paisley and Stevie Wonder.
Beyonce, Kelly Clarkson and James Taylor were already announced for the special event, which takes place on 21st January at the West Front of the Capitol in Washington.
They will also appear at a special children's concert a few days before on 19th January.
Beyonce is expected to sing the US national anthem at the event and is good friends with the President and wife Michelle Obama.
"Vice President [Joe] Biden and I are honored to have these wonderfully talented musical artists perform at the Inaugural ceremony," the President said following the announcement of the first confirmed acts. "Their music is often at the heart of the American story and speaks to folks across the country."
Meanwhile, Katy Perry was also recently named the Hottest Woman of 2013 by Men's Health magazine earlier this year.