Obama rolls up sleeves to promote volunteering As President Barack Obama prepares to be sworn in for a second term on Monday, he found time to help spruce up a Washington elementary school as part of a day of service to promote volunteer work. Obama then made a speech encouraging young people to get involved helping their communities. Across the United States, people took part in service projects on Saturday, which is also a national holiday in honour of civil rights leader Martin Luther King. First Lady Michelle Obama hosted the Kids" Inaugural Concert, a star-studded event that honours American military families. The pop extravaganza was headlined by Katy Perry, dressed in stars and stripes for the occasion. More about: American politics, Barack Obama, Democrats, President, USA