Here's what Jennifer Lopez said in Spanish

Jennifer Lopez also performed during the ceremony, just ahead of Biden's oath.

Lopez, who starred at last year's Super Bowl half-time show, is one of the best-known Latin-American stars in the US, reports BBC.

She sang a medley of This Land is Your Land and America the Beautiful - addressing the crowd in Spanish part way through her performance, declaring: "Una nación indivisible con libertad y justicia para todos" (one nation under God, indivisible with liberty and justice for all).

Somehow, she also managed to squeeze a line of her 1999 club smash, Let's Get Loud, into the performance - which was either a passionate demand for people to speak out against injustice or an exceptional piece of marketing, depending on your point of view.

Yesterday, the singer posted a video of herself with a few of the estimated 25,000 troops who are in Washington DC to secure the inauguration, together with the words: "Tomorrow I sing for you and all Americans."