Ryan Seacrest Decides to Sing for ‘American Idol’ Finale ... With Richard Marx

'I've never been nervous on the Idol stage before!' Ryan Seacrest makes off-key singing debut with Richard Marx (The Daily Mail)

Ryan Seacrest has hosted 13 straight seasons of American Idol, but he's never sung a note himself...until Wednesday night's finale.

The 39-year-old presenter opted to make his off-key debut on the Fox singing competition by dueting with his favourite eighties balladeer Richard Marx.

'I've never been nervous on the idol stage before...tonight it's very different. Watch this,' Ryan tweeted to his 12.6 million followers.