From Jingle Bells to Amazing Grace, Barack Obama has never been shy when it comes to belting out an impromptu tune.
During his time in office, the outgoing president has often found times to share his crooning with the world, be it at press conferences, official church visits or Christmas celebrations.
This includes the moment he sang Jingle Bells with Father Christmas as he switched on the National Christmas Tree at the White House last year.
Back in 2012, he joined Blues legend BB King singing Sweet Home Chicago in the presence of Mick Jagger.
And who could forget his rendition of Amazing Grace during a eulogy to one of the victims of the Charleston shooting.
It's not clear what Mr Obama will be doing following his presidency, but he has no plans to retire from political life.
He said last year: "I'll go back to doing the kinds of work that I was doing before, just trying to find ways to help people.
"Help young people get educations, and help people get jobs, and try to bring businesses into neighborhoods that don't have enough businesses. That's the kind of work that I really love to do."
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