Democrats have complained about the number of lengthy, boring speeches at their convention this week - but the same grumbles cannot be made about Donna Brazile's performance last night.

The interim chairwoman of the Democratic National Committee gave a rousing speech to delegates and then followed it up with some of her finest dance moves as she sashayed off the stage.

Brazile, 56, was parachuted in to lead the convention last week at the weekend after former chairwoman Debbie Wasserman Schultz was forced to resign following a scandalous email leak.

But the temporary leader looked to be comfortable in her new role as she gave the packed crowd of delegates a twirl and elegantly exited the stage.

Twirling: Donna Brazile danced off the stage at the Democratic National Convention after a rousing speech

Brazile, 56, was parachuted in to lead the convention last week, but looked relaxed as she exited the stage

Brazile dazzled as she waved to the audience - who gave her a huge cheer - after delivering a powerful speech on social change.

'As a child, I lived through and survived the segregated South. I sat at the back of the bus at a time when America wasn’t yet as great as it could be,' she had earlier told the audience in Philadelphia.

'As a grown woman, I saw the first black president reach down a hand and touch the face of a child like I once was, lifting his eyes toward a better future.

'But I have never, ever, in all my years seen a leader so committed to delivering that better future to America’s children as Hillary Clinton,' she added.

Brazile said she was '21, feisty and ready to fight' when she first Clinton.

'I remember thinking immediately, here is a woman who doesn’t mess around. Steel in her spine, Hillary didn’t want to talk about anything other than how to make children’s lives better. That’s the Hillary I know.

Brazile dazzled as she waved to the audience - who gave her a huge cheer - after delivering a powerful speech on social change

Brazile looked to be comfortable in her new role as she gave the packed crowd of delegates a twirl and elegantly exited the stage

The interim chairwoman of the Democratic National Committee gave a speech on social change before dancing off the stage

'At her core, rooting her to this earth, is the belief that every child, black or white, rich or poor, native-born, immigrant, or undocumented, deserves the opportunity to live up to their God-given potential.

'My friends, as a child I sat in the back of the bus. I was told, time and time again, that God’s potential didn’t exist in people like me. I’ve spent my life fighting to change that. And, from the first day when I met Hillary Clinton, I’ve known that she’s someone who cares just as much and fights just as hard.'