Stevie Wonder, Sheryl Crow, Will.I.Am play at Barack Obama's Democratic convention

Stevie Wonder, Sheryl Crow and Will.I.Am performed live at the Democratic National Convention in Denver, at the Mile High Stadium – home to the Denver Broncos American football team.

On Thursday night (August 28) Barack Obama made a speech accepting the position of Democratic nominee for the forthcoming US presidential elections.

Will.I.Am was joined by John Legend for his performance of 'Yes We Can' – a song he wrote about Obama.

Wonder performed 'Signed, Sealed, Delivered I'm Yours'. The convention had been kicked off by Crow on Sunday night (August 24) at the Red Rocks Amphitheater.

"What I'm hearing from Senator Obama is a lot like what we heard from Robert Kennedy," Crow had said from the stage, reports AP. "No matter what campaign ad we see or how it's spun, hope is important. It's what this country was based on."

Meanwhile, a more indie spin on the Democratic convention occurred last night (August 29) at Denver's Manifest Hope Gallery, where Clap Your Hands Say Yeah, Nada Surf and Cold War Kids performed, while She And Him singer, actress Zooey Deschanel teamed-up with Death Cab For Cutie.

The event was billed as an Obama-themed evening of musical entertainment named Unconventional '08, and was hosted by San Francisco mayor Gavin Newsom.

See video footage of Stevie Wonder performing at the Democratic Convention by clicking on the video below.